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Finding the Fourth Proportional to 709,329.52, 977,730.96 and 479,802.97

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Solution

The fourth proportional to 709,329.52, 977,730.96 and 479,802.97 is: 661,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,329.52 : 977,730.96 = 479,802.97 : x
  2. Step 2: Convert to fraction form
    709,329.52/977,730.96 = 479,802.97/x
  3. Step 3: Cross multiply
    709,329.52x = 977,730.96 × 479,802.97
  4. Step 4: Simplify right side
    709,329.52x = 469,118,218,468.95
  5. Step 5: Solve for x
    x = 469,118,218,468.95/709,329.52
  6. Step 6: Final answer
    x = 661,354.43

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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.