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Finding the Fourth Proportional to 445,935.27, 615,133.31 and 284,608.48

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Solution

The fourth proportional to 445,935.27, 615,133.31 and 284,608.48 is: 392,595.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,935.27 : 615,133.31 = 284,608.48 : x
  2. Step 2: Convert to fraction form
    445,935.27/615,133.31 = 284,608.48/x
  3. Step 3: Cross multiply
    445,935.27x = 615,133.31 × 284,608.48
  4. Step 4: Simplify right side
    445,935.27x = 175,072,156,356.47
  5. Step 5: Solve for x
    x = 175,072,156,356.47/445,935.27
  6. Step 6: Final answer
    x = 392,595.45

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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.