Home / 538,944.20-807,897.90-418,934.60

Finding the Fourth Proportional to 538,944.20, 807,897.90 and 418,934.60

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Solution

The fourth proportional to 538,944.20, 807,897.90 and 418,934.60 is: 627,998.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,944.20 : 807,897.90 = 418,934.60 : x
  2. Step 2: Convert to fraction form
    538,944.20/807,897.90 = 418,934.60/x
  3. Step 3: Cross multiply
    538,944.20x = 807,897.90 × 418,934.60
  4. Step 4: Simplify right side
    538,944.20x = 338,456,383,577.34
  5. Step 5: Solve for x
    x = 338,456,383,577.34/538,944.20
  6. Step 6: Final answer
    x = 627,998.93

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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.