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Finding the Fourth Proportional to 521,597.68, 782,304.02 and 237,221.61

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Solution

The fourth proportional to 521,597.68, 782,304.02 and 237,221.61 is: 355,790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,597.68 : 782,304.02 = 237,221.61 : x
  2. Step 2: Convert to fraction form
    521,597.68/782,304.02 = 237,221.61/x
  3. Step 3: Cross multiply
    521,597.68x = 782,304.02 × 237,221.61
  4. Step 4: Simplify right side
    521,597.68x = 185,579,421,638.54
  5. Step 5: Solve for x
    x = 185,579,421,638.54/521,597.68
  6. Step 6: Final answer
    x = 355,790.35

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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.