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Finding the Fourth Proportional to 522,691.80, 721,568.10 and 350,546.81

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Solution

The fourth proportional to 522,691.80, 721,568.10 and 350,546.81 is: 483,924.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,691.80 : 721,568.10 = 350,546.81 : x
  2. Step 2: Convert to fraction form
    522,691.80/721,568.10 = 350,546.81/x
  3. Step 3: Cross multiply
    522,691.80x = 721,568.10 × 350,546.81
  4. Step 4: Simplify right side
    522,691.80x = 252,943,392,044.92
  5. Step 5: Solve for x
    x = 252,943,392,044.92/522,691.80
  6. Step 6: Final answer
    x = 483,924.55

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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.