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Finding the Fourth Proportional to 521,484.96, 782,227.44 and 272,108.64

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Solution

The fourth proportional to 521,484.96, 782,227.44 and 272,108.64 is: 408,162.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,484.96 : 782,227.44 = 272,108.64 : x
  2. Step 2: Convert to fraction form
    521,484.96/782,227.44 = 272,108.64/x
  3. Step 3: Cross multiply
    521,484.96x = 782,227.44 × 272,108.64
  4. Step 4: Simplify right side
    521,484.96x = 212,850,844,869.08
  5. Step 5: Solve for x
    x = 212,850,844,869.08/521,484.96
  6. Step 6: Final answer
    x = 408,162.96

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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.