Home / 876,390.80-1,314,586.20-434,022.80

Finding the Fourth Proportional to 876,390.80, 1,314,586.20 and 434,022.80

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Solution

The fourth proportional to 876,390.80, 1,314,586.20 and 434,022.80 is: 651,034.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,390.80 : 1,314,586.20 = 434,022.80 : x
  2. Step 2: Convert to fraction form
    876,390.80/1,314,586.20 = 434,022.80/x
  3. Step 3: Cross multiply
    876,390.80x = 1,314,586.20 × 434,022.80
  4. Step 4: Simplify right side
    876,390.80x = 570,560,383,365.36
  5. Step 5: Solve for x
    x = 570,560,383,365.36/876,390.80
  6. Step 6: Final answer
    x = 651,034.20

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Double scale
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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.