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Finding the Fourth Proportional to 539,505.25, 744,517.31 and 297,787.88

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Solution

The fourth proportional to 539,505.25, 744,517.31 and 297,787.88 is: 410,947.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,505.25 : 744,517.31 = 297,787.88 : x
  2. Step 2: Convert to fraction form
    539,505.25/744,517.31 = 297,787.88/x
  3. Step 3: Cross multiply
    539,505.25x = 744,517.31 × 297,787.88
  4. Step 4: Simplify right side
    539,505.25x = 221,708,231,368.20
  5. Step 5: Solve for x
    x = 221,708,231,368.20/539,505.25
  6. Step 6: Final answer
    x = 410,947.31

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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.