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Finding the Fourth Proportional to 605,844.30, 908,766.45 and 307,245.90

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Solution

The fourth proportional to 605,844.30, 908,766.45 and 307,245.90 is: 460,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,844.30 : 908,766.45 = 307,245.90 : x
  2. Step 2: Convert to fraction form
    605,844.30/908,766.45 = 307,245.90/x
  3. Step 3: Cross multiply
    605,844.30x = 908,766.45 × 307,245.90
  4. Step 4: Simplify right side
    605,844.30x = 279,214,765,820.06
  5. Step 5: Solve for x
    x = 279,214,765,820.06/605,844.30
  6. Step 6: Final answer
    x = 460,868.85

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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.