Home / 898,134.20-1,347,201.30-815,190.20

Finding the Fourth Proportional to 898,134.20, 1,347,201.30 and 815,190.20

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Solution

The fourth proportional to 898,134.20, 1,347,201.30 and 815,190.20 is: 1,222,785.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,134.20 : 1,347,201.30 = 815,190.20 : x
  2. Step 2: Convert to fraction form
    898,134.20/1,347,201.30 = 815,190.20/x
  3. Step 3: Cross multiply
    898,134.20x = 1,347,201.30 × 815,190.20
  4. Step 4: Simplify right side
    898,134.20x = 1,098,225,297,187.26
  5. Step 5: Solve for x
    x = 1,098,225,297,187.26/898,134.20
  6. Step 6: Final answer
    x = 1,222,785.30

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Half scale
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Double scale
Find fourth proportional to 898,135.20, 1,347,202.80 and 815,191.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.