Home / 876,407.20-1,315,185.19-307,773.43

Finding the Fourth Proportional to 876,407.20, 1,315,185.19 and 307,773.43

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Solution

The fourth proportional to 876,407.20, 1,315,185.19 and 307,773.43 is: 461,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,407.20 : 1,315,185.19 = 307,773.43 : x
  2. Step 2: Convert to fraction form
    876,407.20/1,315,185.19 = 307,773.43/x
  3. Step 3: Cross multiply
    876,407.20x = 1,315,185.19 × 307,773.43
  4. Step 4: Simplify right side
    876,407.20x = 404,779,052,954.11
  5. Step 5: Solve for x
    x = 404,779,052,954.11/876,407.20
  6. Step 6: Final answer
    x = 461,861.85

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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.