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Finding the Fourth Proportional to 625,310.43, 862,595.53 and 380,370.08

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Solution

The fourth proportional to 625,310.43, 862,595.53 and 380,370.08 is: 524,708.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,310.43 : 862,595.53 = 380,370.08 : x
  2. Step 2: Convert to fraction form
    625,310.43/862,595.53 = 380,370.08/x
  3. Step 3: Cross multiply
    625,310.43x = 862,595.53 × 380,370.08
  4. Step 4: Simplify right side
    625,310.43x = 328,105,527,107.21
  5. Step 5: Solve for x
    x = 328,105,527,107.21/625,310.43
  6. Step 6: Final answer
    x = 524,708.23

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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.