Home / 521,394.27-782,387.24-281,504.96

Finding the Fourth Proportional to 521,394.27, 782,387.24 and 281,504.96

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Solution

The fourth proportional to 521,394.27, 782,387.24 and 281,504.96 is: 422,417.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,394.27 : 782,387.24 = 281,504.96 : x
  2. Step 2: Convert to fraction form
    521,394.27/782,387.24 = 281,504.96/x
  3. Step 3: Cross multiply
    521,394.27x = 782,387.24 × 281,504.96
  4. Step 4: Simplify right side
    521,394.27x = 220,245,883,381.25
  5. Step 5: Solve for x
    x = 220,245,883,381.25/521,394.27
  6. Step 6: Final answer
    x = 422,417.15

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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.