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Finding the Fourth Proportional to 487,908.60, 731,487.72 and 247,825.23

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Solution

The fourth proportional to 487,908.60, 731,487.72 and 247,825.23 is: 371,547.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,908.60 : 731,487.72 = 247,825.23 : x
  2. Step 2: Convert to fraction form
    487,908.60/731,487.72 = 247,825.23/x
  3. Step 3: Cross multiply
    487,908.60x = 731,487.72 × 247,825.23
  4. Step 4: Simplify right side
    487,908.60x = 181,281,112,451.18
  5. Step 5: Solve for x
    x = 181,281,112,451.18/487,908.60
  6. Step 6: Final answer
    x = 371,547.28

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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.