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Finding the Fourth Proportional to 624,875.43, 862,326.38 and 338,395.44

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Solution

The fourth proportional to 624,875.43, 862,326.38 and 338,395.44 is: 466,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,875.43 : 862,326.38 = 338,395.44 : x
  2. Step 2: Convert to fraction form
    624,875.43/862,326.38 = 338,395.44/x
  3. Step 3: Cross multiply
    624,875.43x = 862,326.38 × 338,395.44
  4. Step 4: Simplify right side
    624,875.43x = 291,807,313,091.73
  5. Step 5: Solve for x
    x = 291,807,313,091.73/624,875.43
  6. Step 6: Final answer
    x = 466,984.78

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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.