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Finding the Fourth Proportional to 605,687.70, 908,531.55 and 416,730.90

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Solution

The fourth proportional to 605,687.70, 908,531.55 and 416,730.90 is: 625,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,687.70 : 908,531.55 = 416,730.90 : x
  2. Step 2: Convert to fraction form
    605,687.70/908,531.55 = 416,730.90/x
  3. Step 3: Cross multiply
    605,687.70x = 908,531.55 × 416,730.90
  4. Step 4: Simplify right side
    605,687.70x = 378,613,170,509.90
  5. Step 5: Solve for x
    x = 378,613,170,509.90/605,687.70
  6. Step 6: Final answer
    x = 625,096.35

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Similar ratio
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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.