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Finding the Fourth Proportional to 669,713.31, 923,836.27 and 424,248.53

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Solution

The fourth proportional to 669,713.31, 923,836.27 and 424,248.53 is: 585,229.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,713.31 : 923,836.27 = 424,248.53 : x
  2. Step 2: Convert to fraction form
    669,713.31/923,836.27 = 424,248.53/x
  3. Step 3: Cross multiply
    669,713.31x = 923,836.27 × 424,248.53
  4. Step 4: Simplify right side
    669,713.31x = 391,936,177,386.94
  5. Step 5: Solve for x
    x = 391,936,177,386.94/669,713.31
  6. Step 6: Final answer
    x = 585,229.79

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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.