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Finding the Fourth Proportional to 487,881.60, 730,641.28 and 337,701.12

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Solution

The fourth proportional to 487,881.60, 730,641.28 and 337,701.12 is: 505,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,881.60 : 730,641.28 = 337,701.12 : x
  2. Step 2: Convert to fraction form
    487,881.60/730,641.28 = 337,701.12/x
  3. Step 3: Cross multiply
    487,881.60x = 730,641.28 × 337,701.12
  4. Step 4: Simplify right side
    487,881.60x = 246,738,378,574.23
  5. Step 5: Solve for x
    x = 246,738,378,574.23/487,881.60
  6. Step 6: Final answer
    x = 505,734.13

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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.