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Finding the Fourth Proportional to 487,854.69, 731,617.88 and 163,577.13

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Solution

The fourth proportional to 487,854.69, 731,617.88 and 163,577.13 is: 245,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,854.69 : 731,617.88 = 163,577.13 : x
  2. Step 2: Convert to fraction form
    487,854.69/731,617.88 = 163,577.13/x
  3. Step 3: Cross multiply
    487,854.69x = 731,617.88 × 163,577.13
  4. Step 4: Simplify right side
    487,854.69x = 119,675,952,249.20
  5. Step 5: Solve for x
    x = 119,675,952,249.20/487,854.69
  6. Step 6: Final answer
    x = 245,310.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.