Home / 497,316.20-745,974.30-418,584.20

Finding the Fourth Proportional to 497,316.20, 745,974.30 and 418,584.20

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Solution

The fourth proportional to 497,316.20, 745,974.30 and 418,584.20 is: 627,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,316.20 : 745,974.30 = 418,584.20 : x
  2. Step 2: Convert to fraction form
    497,316.20/745,974.30 = 418,584.20/x
  3. Step 3: Cross multiply
    497,316.20x = 745,974.30 × 418,584.20
  4. Step 4: Simplify right side
    497,316.20x = 312,253,055,586.06
  5. Step 5: Solve for x
    x = 312,253,055,586.06/497,316.20
  6. Step 6: Final answer
    x = 627,876.30

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Double scale
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Similar ratio
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1.5x scale

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.