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Finding the Fourth Proportional to 680,227.27, 938,720.30 and 374,310.24

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Solution

The fourth proportional to 680,227.27, 938,720.30 and 374,310.24 is: 516,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,227.27 : 938,720.30 = 374,310.24 : x
  2. Step 2: Convert to fraction form
    680,227.27/938,720.30 = 374,310.24/x
  3. Step 3: Cross multiply
    680,227.27x = 938,720.30 × 374,310.24
  4. Step 4: Simplify right side
    680,227.27x = 351,372,615,394.12
  5. Step 5: Solve for x
    x = 351,372,615,394.12/680,227.27
  6. Step 6: Final answer
    x = 516,551.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.