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Finding the Fourth Proportional to 521,769.30, 782,459.55 and 363,527.70

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Solution

The fourth proportional to 521,769.30, 782,459.55 and 363,527.70 is: 545,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,769.30 : 782,459.55 = 363,527.70 : x
  2. Step 2: Convert to fraction form
    521,769.30/782,459.55 = 363,527.70/x
  3. Step 3: Cross multiply
    521,769.30x = 782,459.55 × 363,527.70
  4. Step 4: Simplify right side
    521,769.30x = 284,445,720,554.54
  5. Step 5: Solve for x
    x = 284,445,720,554.54/521,769.30
  6. Step 6: Final answer
    x = 545,156.11

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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.