Home / 876,305.90-1,314,458.85-343,844.30

Finding the Fourth Proportional to 876,305.90, 1,314,458.85 and 343,844.30

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Solution

The fourth proportional to 876,305.90, 1,314,458.85 and 343,844.30 is: 515,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,305.90 : 1,314,458.85 = 343,844.30 : x
  2. Step 2: Convert to fraction form
    876,305.90/1,314,458.85 = 343,844.30/x
  3. Step 3: Cross multiply
    876,305.90x = 1,314,458.85 × 343,844.30
  4. Step 4: Simplify right side
    876,305.90x = 451,969,183,157.06
  5. Step 5: Solve for x
    x = 451,969,183,157.06/876,305.90
  6. Step 6: Final answer
    x = 515,766.45

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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.