Home / 521,771.29-782,337.08-222,081.21

Finding the Fourth Proportional to 521,771.29, 782,337.08 and 222,081.21

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Solution

The fourth proportional to 521,771.29, 782,337.08 and 222,081.21 is: 332,985.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,771.29 : 782,337.08 = 222,081.21 : x
  2. Step 2: Convert to fraction form
    521,771.29/782,337.08 = 222,081.21/x
  3. Step 3: Cross multiply
    521,771.29x = 782,337.08 × 222,081.21
  4. Step 4: Simplify right side
    521,771.29x = 173,742,365,909.47
  5. Step 5: Solve for x
    x = 173,742,365,909.47/521,771.29
  6. Step 6: Final answer
    x = 332,985.68

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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.