Home / 521,422.24-782,248.56-188,989.60

Finding the Fourth Proportional to 521,422.24, 782,248.56 and 188,989.60

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Solution

The fourth proportional to 521,422.24, 782,248.56 and 188,989.60 is: 283,526.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,422.24 : 782,248.56 = 188,989.60 : x
  2. Step 2: Convert to fraction form
    521,422.24/782,248.56 = 188,989.60/x
  3. Step 3: Cross multiply
    521,422.24x = 782,248.56 × 188,989.60
  4. Step 4: Simplify right side
    521,422.24x = 147,836,842,454.98
  5. Step 5: Solve for x
    x = 147,836,842,454.98/521,422.24
  6. Step 6: Final answer
    x = 283,526.15

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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.