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Finding the Fourth Proportional to 487,066.88, 730,691.04 and 171,724.16

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Solution

The fourth proportional to 487,066.88, 730,691.04 and 171,724.16 is: 257,618.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,066.88 : 730,691.04 = 171,724.16 : x
  2. Step 2: Convert to fraction form
    487,066.88/730,691.04 = 171,724.16/x
  3. Step 3: Cross multiply
    487,066.88x = 730,691.04 × 171,724.16
  4. Step 4: Simplify right side
    487,066.88x = 125,477,305,063.53
  5. Step 5: Solve for x
    x = 125,477,305,063.53/487,066.88
  6. Step 6: Final answer
    x = 257,618.22

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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.