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Finding the Fourth Proportional to 583,092.78, 804,635.51 and 321,439.65

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Solution

The fourth proportional to 583,092.78, 804,635.51 and 321,439.65 is: 443,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,092.78 : 804,635.51 = 321,439.65 : x
  2. Step 2: Convert to fraction form
    583,092.78/804,635.51 = 321,439.65/x
  3. Step 3: Cross multiply
    583,092.78x = 804,635.51 × 321,439.65
  4. Step 4: Simplify right side
    583,092.78x = 258,641,755,104.77
  5. Step 5: Solve for x
    x = 258,641,755,104.77/583,092.78
  6. Step 6: Final answer
    x = 443,568.78

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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.