Home / 866,961.20-1,300,635.55-418,059.63

Finding the Fourth Proportional to 866,961.20, 1,300,635.55 and 418,059.63

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Solution

The fourth proportional to 866,961.20, 1,300,635.55 and 418,059.63 is: 627,182.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,961.20 : 1,300,635.55 = 418,059.63 : x
  2. Step 2: Convert to fraction form
    866,961.20/1,300,635.55 = 418,059.63/x
  3. Step 3: Cross multiply
    866,961.20x = 1,300,635.55 × 418,059.63
  4. Step 4: Simplify right side
    866,961.20x = 543,743,218,496.21
  5. Step 5: Solve for x
    x = 543,743,218,496.21/866,961.20
  6. Step 6: Final answer
    x = 627,182.88

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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.