Home / 521,442.96-782,249.04-161,529.72

Finding the Fourth Proportional to 521,442.96, 782,249.04 and 161,529.72

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Solution

The fourth proportional to 521,442.96, 782,249.04 and 161,529.72 is: 242,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,442.96 : 782,249.04 = 161,529.72 : x
  2. Step 2: Convert to fraction form
    521,442.96/782,249.04 = 161,529.72/x
  3. Step 3: Cross multiply
    521,442.96x = 782,249.04 × 161,529.72
  4. Step 4: Simplify right side
    521,442.96x = 126,356,468,401.47
  5. Step 5: Solve for x
    x = 126,356,468,401.47/521,442.96
  6. Step 6: Final answer
    x = 242,320.79

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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.