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Finding the Fourth Proportional to 580,505.18, 801,105.01 and 322,398.78

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Solution

The fourth proportional to 580,505.18, 801,105.01 and 322,398.78 is: 444,914.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,505.18 : 801,105.01 = 322,398.78 : x
  2. Step 2: Convert to fraction form
    580,505.18/801,105.01 = 322,398.78/x
  3. Step 3: Cross multiply
    580,505.18x = 801,105.01 × 322,398.78
  4. Step 4: Simplify right side
    580,505.18x = 258,275,279,478.71
  5. Step 5: Solve for x
    x = 258,275,279,478.71/580,505.18
  6. Step 6: Final answer
    x = 444,914.68

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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.