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Finding the Fourth Proportional to 625,205.28, 862,784.15 and 338,725.37

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Solution

The fourth proportional to 625,205.28, 862,784.15 and 338,725.37 is: 467,441.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,205.28 : 862,784.15 = 338,725.37 : x
  2. Step 2: Convert to fraction form
    625,205.28/862,784.15 = 338,725.37/x
  3. Step 3: Cross multiply
    625,205.28x = 862,784.15 × 338,725.37
  4. Step 4: Simplify right side
    625,205.28x = 292,246,874,431.34
  5. Step 5: Solve for x
    x = 292,246,874,431.34/625,205.28
  6. Step 6: Final answer
    x = 467,441.47

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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.