Home / 521,927.20-782,963.70-222,405.40

Finding the Fourth Proportional to 521,927.20, 782,963.70 and 222,405.40

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Solution

The fourth proportional to 521,927.20, 782,963.70 and 222,405.40 is: 333,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,927.20 : 782,963.70 = 222,405.40 : x
  2. Step 2: Convert to fraction form
    521,927.20/782,963.70 = 222,405.40/x
  3. Step 3: Cross multiply
    521,927.20x = 782,963.70 × 222,405.40
  4. Step 4: Simplify right side
    521,927.20x = 174,135,354,883.98
  5. Step 5: Solve for x
    x = 174,135,354,883.98/521,927.20
  6. Step 6: Final answer
    x = 333,639.16

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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.