Home / 779,881.72-1,169,899.68-324,379.48

Finding the Fourth Proportional to 779,881.72, 1,169,899.68 and 324,379.48

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Solution

The fourth proportional to 779,881.72, 1,169,899.68 and 324,379.48 is: 486,601.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,881.72 : 1,169,899.68 = 324,379.48 : x
  2. Step 2: Convert to fraction form
    779,881.72/1,169,899.68 = 324,379.48/x
  3. Step 3: Cross multiply
    779,881.72x = 1,169,899.68 × 324,379.48
  4. Step 4: Simplify right side
    779,881.72x = 379,491,449,850.57
  5. Step 5: Solve for x
    x = 379,491,449,850.57/779,881.72
  6. Step 6: Final answer
    x = 486,601.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.