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Finding the Fourth Proportional to 625,254.46, 862,839.81 and 353,316.58

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Solution

The fourth proportional to 625,254.46, 862,839.81 and 353,316.58 is: 487,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,254.46 : 862,839.81 = 353,316.58 : x
  2. Step 2: Convert to fraction form
    625,254.46/862,839.81 = 353,316.58/x
  3. Step 3: Cross multiply
    625,254.46x = 862,839.81 × 353,316.58
  4. Step 4: Simplify right side
    625,254.46x = 304,855,610,757.05
  5. Step 5: Solve for x
    x = 304,855,610,757.05/625,254.46
  6. Step 6: Final answer
    x = 487,570.47

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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.