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Finding the Fourth Proportional to 605,627.70, 908,441.55 and 416,670.90

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Solution

The fourth proportional to 605,627.70, 908,441.55 and 416,670.90 is: 625,006.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,627.70 : 908,441.55 = 416,670.90 : x
  2. Step 2: Convert to fraction form
    605,627.70/908,441.55 = 416,670.90/x
  3. Step 3: Cross multiply
    605,627.70x = 908,441.55 × 416,670.90
  4. Step 4: Simplify right side
    605,627.70x = 378,521,158,235.90
  5. Step 5: Solve for x
    x = 378,521,158,235.90/605,627.70
  6. Step 6: Final answer
    x = 625,006.35

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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.