Home / 521,881.20-782,894.70-222,359.40

Finding the Fourth Proportional to 521,881.20, 782,894.70 and 222,359.40

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Solution

The fourth proportional to 521,881.20, 782,894.70 and 222,359.40 is: 333,570.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,881.20 : 782,894.70 = 222,359.40 : x
  2. Step 2: Convert to fraction form
    521,881.20/782,894.70 = 222,359.40/x
  3. Step 3: Cross multiply
    521,881.20x = 782,894.70 × 222,359.40
  4. Step 4: Simplify right side
    521,881.20x = 174,083,995,755.18
  5. Step 5: Solve for x
    x = 174,083,995,755.18/521,881.20
  6. Step 6: Final answer
    x = 333,570.16

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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.