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Finding the Fourth Proportional to 625,119.33, 862,662.54 and 338,639.07

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Solution

The fourth proportional to 625,119.33, 862,662.54 and 338,639.07 is: 467,320.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,119.33 : 862,662.54 = 338,639.07 : x
  2. Step 2: Convert to fraction form
    625,119.33/862,662.54 = 338,639.07/x
  3. Step 3: Cross multiply
    625,119.33x = 862,662.54 × 338,639.07
  4. Step 4: Simplify right side
    625,119.33x = 292,131,240,269.44
  5. Step 5: Solve for x
    x = 292,131,240,269.44/625,119.33
  6. Step 6: Final answer
    x = 467,320.76

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Similar ratio
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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.