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Finding the Fourth Proportional to 704,641.92, 972,398.16 and 382,359.12

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Solution

The fourth proportional to 704,641.92, 972,398.16 and 382,359.12 is: 527,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,641.92 : 972,398.16 = 382,359.12 : x
  2. Step 2: Convert to fraction form
    704,641.92/972,398.16 = 382,359.12/x
  3. Step 3: Cross multiply
    704,641.92x = 972,398.16 × 382,359.12
  4. Step 4: Simplify right side
    704,641.92x = 371,805,304,747.22
  5. Step 5: Solve for x
    x = 371,805,304,747.22/704,641.92
  6. Step 6: Final answer
    x = 527,651.41

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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.