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Finding the Fourth Proportional to 544,436.40, 815,099.40 and 488,449.20

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Solution

The fourth proportional to 544,436.40, 815,099.40 and 488,449.20 is: 731,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,436.40 : 815,099.40 = 488,449.20 : x
  2. Step 2: Convert to fraction form
    544,436.40/815,099.40 = 488,449.20/x
  3. Step 3: Cross multiply
    544,436.40x = 815,099.40 × 488,449.20
  4. Step 4: Simplify right side
    544,436.40x = 398,134,649,850.48
  5. Step 5: Solve for x
    x = 398,134,649,850.48/544,436.40
  6. Step 6: Final answer
    x = 731,278.53

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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.