Home / 453,740.20-680,610.30-418,310.80

Finding the Fourth Proportional to 453,740.20, 680,610.30 and 418,310.80

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Solution

The fourth proportional to 453,740.20, 680,610.30 and 418,310.80 is: 627,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,740.20 : 680,610.30 = 418,310.80 : x
  2. Step 2: Convert to fraction form
    453,740.20/680,610.30 = 418,310.80/x
  3. Step 3: Cross multiply
    453,740.20x = 680,610.30 × 418,310.80
  4. Step 4: Simplify right side
    453,740.20x = 284,706,639,081.24
  5. Step 5: Solve for x
    x = 284,706,639,081.24/453,740.20
  6. Step 6: Final answer
    x = 627,466.20

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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.