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Finding the Fourth Proportional to 580,878.66, 801,687.72 and 326,229.84

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Solution

The fourth proportional to 580,878.66, 801,687.72 and 326,229.84 is: 450,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,878.66 : 801,687.72 = 326,229.84 : x
  2. Step 2: Convert to fraction form
    580,878.66/801,687.72 = 326,229.84/x
  3. Step 3: Cross multiply
    580,878.66x = 801,687.72 × 326,229.84
  4. Step 4: Simplify right side
    580,878.66x = 261,534,456,625.57
  5. Step 5: Solve for x
    x = 261,534,456,625.57/580,878.66
  6. Step 6: Final answer
    x = 450,239.40

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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.