Home / 717,691.20-1,076,342.40-212,251.20

Finding the Fourth Proportional to 717,691.20, 1,076,342.40 and 212,251.20

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Solution

The fourth proportional to 717,691.20, 1,076,342.40 and 212,251.20 is: 318,319.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,691.20 : 1,076,342.40 = 212,251.20 : x
  2. Step 2: Convert to fraction form
    717,691.20/1,076,342.40 = 212,251.20/x
  3. Step 3: Cross multiply
    717,691.20x = 1,076,342.40 × 212,251.20
  4. Step 4: Simplify right side
    717,691.20x = 228,454,966,010.88
  5. Step 5: Solve for x
    x = 228,454,966,010.88/717,691.20
  6. Step 6: Final answer
    x = 318,319.31

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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.