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Finding the Fourth Proportional to 445,957.39, 615,421.61 and 254,974.78

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Solution

The fourth proportional to 445,957.39, 615,421.61 and 254,974.78 is: 351,865.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,957.39 : 615,421.61 = 254,974.78 : x
  2. Step 2: Convert to fraction form
    445,957.39/615,421.61 = 254,974.78/x
  3. Step 3: Cross multiply
    445,957.39x = 615,421.61 × 254,974.78
  4. Step 4: Simplify right side
    445,957.39x = 156,916,989,617.00
  5. Step 5: Solve for x
    x = 156,916,989,617.00/445,957.39
  6. Step 6: Final answer
    x = 351,865.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.