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Finding the Fourth Proportional to 487,481.80, 730,877.10 and 187,846.60

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Solution

The fourth proportional to 487,481.80, 730,877.10 and 187,846.60 is: 281,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,481.80 : 730,877.10 = 187,846.60 : x
  2. Step 2: Convert to fraction form
    487,481.80/730,877.10 = 187,846.60/x
  3. Step 3: Cross multiply
    487,481.80x = 730,877.10 × 187,846.60
  4. Step 4: Simplify right side
    487,481.80x = 137,292,778,252.86
  5. Step 5: Solve for x
    x = 137,292,778,252.86/487,481.80
  6. Step 6: Final answer
    x = 281,636.73

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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.