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Finding the Fourth Proportional to 625,203.96, 862,782.30 and 338,724.04

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Solution

The fourth proportional to 625,203.96, 862,782.30 and 338,724.04 is: 467,439.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,203.96 : 862,782.30 = 338,724.04 : x
  2. Step 2: Convert to fraction form
    625,203.96/862,782.30 = 338,724.04/x
  3. Step 3: Cross multiply
    625,203.96x = 862,782.30 × 338,724.04
  4. Step 4: Simplify right side
    625,203.96x = 292,245,106,296.49
  5. Step 5: Solve for x
    x = 292,245,106,296.49/625,203.96
  6. Step 6: Final answer
    x = 467,439.63

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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.