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Finding the Fourth Proportional to 661,304.82, 912,542.28 and 366,961.92

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Solution

The fourth proportional to 661,304.82, 912,542.28 and 366,961.92 is: 506,375.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,304.82 : 912,542.28 = 366,961.92 : x
  2. Step 2: Convert to fraction form
    661,304.82/912,542.28 = 366,961.92/x
  3. Step 3: Cross multiply
    661,304.82x = 912,542.28 × 366,961.92
  4. Step 4: Simplify right side
    661,304.82x = 334,868,267,149.98
  5. Step 5: Solve for x
    x = 334,868,267,149.98/661,304.82
  6. Step 6: Final answer
    x = 506,375.06

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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.