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Finding the Fourth Proportional to 582,618.72, 804,029.04 and 327,979.20

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Solution

The fourth proportional to 582,618.72, 804,029.04 and 327,979.20 is: 452,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,618.72 : 804,029.04 = 327,979.20 : x
  2. Step 2: Convert to fraction form
    582,618.72/804,029.04 = 327,979.20/x
  3. Step 3: Cross multiply
    582,618.72x = 804,029.04 × 327,979.20
  4. Step 4: Simplify right side
    582,618.72x = 263,704,801,315.97
  5. Step 5: Solve for x
    x = 263,704,801,315.97/582,618.72
  6. Step 6: Final answer
    x = 452,619.86

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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.