Home / 521,772.40-782,954.04-222,221.84

Finding the Fourth Proportional to 521,772.40, 782,954.04 and 222,221.84

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Solution

The fourth proportional to 521,772.40, 782,954.04 and 222,221.84 is: 333,458.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,772.40 : 782,954.04 = 222,221.84 : x
  2. Step 2: Convert to fraction form
    521,772.40/782,954.04 = 222,221.84/x
  3. Step 3: Cross multiply
    521,772.40x = 782,954.04 × 222,221.84
  4. Step 4: Simplify right side
    521,772.40x = 173,989,487,404.23
  5. Step 5: Solve for x
    x = 173,989,487,404.23/521,772.40
  6. Step 6: Final answer
    x = 333,458.59

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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.