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Finding the Fourth Proportional to 580,687.20, 801,327.60 and 326,049.12

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Solution

The fourth proportional to 580,687.20, 801,327.60 and 326,049.12 is: 449,936.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,687.20 : 801,327.60 = 326,049.12 : x
  2. Step 2: Convert to fraction form
    580,687.20/801,327.60 = 326,049.12/x
  3. Step 3: Cross multiply
    580,687.20x = 801,327.60 × 326,049.12
  4. Step 4: Simplify right side
    580,687.20x = 261,272,158,811.71
  5. Step 5: Solve for x
    x = 261,272,158,811.71/580,687.20
  6. Step 6: Final answer
    x = 449,936.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.