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Finding the Fourth Proportional to 445,927.31, 615,122.34 and 284,600.54

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Solution

The fourth proportional to 445,927.31, 615,122.34 and 284,600.54 is: 392,584.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,927.31 : 615,122.34 = 284,600.54 : x
  2. Step 2: Convert to fraction form
    445,927.31/615,122.34 = 284,600.54/x
  3. Step 3: Cross multiply
    445,927.31x = 615,122.34 × 284,600.54
  4. Step 4: Simplify right side
    445,927.31x = 175,064,150,130.06
  5. Step 5: Solve for x
    x = 175,064,150,130.06/445,927.31
  6. Step 6: Final answer
    x = 392,584.50

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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.