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Finding the Fourth Proportional to 605,846.80, 908,770.20 and 307,248.40

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Solution

The fourth proportional to 605,846.80, 908,770.20 and 307,248.40 is: 460,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,846.80 : 908,770.20 = 307,248.40 : x
  2. Step 2: Convert to fraction form
    605,846.80/908,770.20 = 307,248.40/x
  3. Step 3: Cross multiply
    605,846.80x = 908,770.20 × 307,248.40
  4. Step 4: Simplify right side
    605,846.80x = 279,218,189,917.68
  5. Step 5: Solve for x
    x = 279,218,189,917.68/605,846.80
  6. Step 6: Final answer
    x = 460,872.60

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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.