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Finding the Fourth Proportional to 717,900.96, 990,530.33 and 472,859.97

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Solution

The fourth proportional to 717,900.96, 990,530.33 and 472,859.97 is: 652,432.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,900.96 : 990,530.33 = 472,859.97 : x
  2. Step 2: Convert to fraction form
    717,900.96/990,530.33 = 472,859.97/x
  3. Step 3: Cross multiply
    717,900.96x = 990,530.33 × 472,859.97
  4. Step 4: Simplify right side
    717,900.96x = 468,382,142,127.89
  5. Step 5: Solve for x
    x = 468,382,142,127.89/717,900.96
  6. Step 6: Final answer
    x = 652,432.81

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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.