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Finding the Fourth Proportional to 624,863.20, 862,300.56 and 338,380.96

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Solution

The fourth proportional to 624,863.20, 862,300.56 and 338,380.96 is: 466,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,863.20 : 862,300.56 = 338,380.96 : x
  2. Step 2: Convert to fraction form
    624,863.20/862,300.56 = 338,380.96/x
  3. Step 3: Cross multiply
    624,863.20x = 862,300.56 × 338,380.96
  4. Step 4: Simplify right side
    624,863.20x = 291,786,091,301.34
  5. Step 5: Solve for x
    x = 291,786,091,301.34/624,863.20
  6. Step 6: Final answer
    x = 466,959.95

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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.