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Finding the Fourth Proportional to 664,714.38, 996,862.44 and 215,330.98

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Solution

The fourth proportional to 664,714.38, 996,862.44 and 215,330.98 is: 322,928.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,714.38 : 996,862.44 = 215,330.98 : x
  2. Step 2: Convert to fraction form
    664,714.38/996,862.44 = 215,330.98/x
  3. Step 3: Cross multiply
    664,714.38x = 996,862.44 × 215,330.98
  4. Step 4: Simplify right side
    664,714.38x = 214,655,366,130.39
  5. Step 5: Solve for x
    x = 214,655,366,130.39/664,714.38
  6. Step 6: Final answer
    x = 322,928.72

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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.