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Finding the Fourth Proportional to 579,356.27, 799,594.04 and 321,290.61

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Solution

The fourth proportional to 579,356.27, 799,594.04 and 321,290.61 is: 443,426.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,356.27 : 799,594.04 = 321,290.61 : x
  2. Step 2: Convert to fraction form
    579,356.27/799,594.04 = 321,290.61/x
  3. Step 3: Cross multiply
    579,356.27x = 799,594.04 × 321,290.61
  4. Step 4: Simplify right side
    579,356.27x = 256,902,056,863.96
  5. Step 5: Solve for x
    x = 256,902,056,863.96/579,356.27
  6. Step 6: Final answer
    x = 443,426.73

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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.