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Finding the Fourth Proportional to 625,095.60, 862,631.86 and 338,615.62

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Solution

The fourth proportional to 625,095.60, 862,631.86 and 338,615.62 is: 467,289.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,095.60 : 862,631.86 = 338,615.62 : x
  2. Step 2: Convert to fraction form
    625,095.60/862,631.86 = 338,615.62/x
  3. Step 3: Cross multiply
    625,095.60x = 862,631.86 × 338,615.62
  4. Step 4: Simplify right side
    625,095.60x = 292,100,622,105.65
  5. Step 5: Solve for x
    x = 292,100,622,105.65/625,095.60
  6. Step 6: Final answer
    x = 467,289.52

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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.