Home / 831,650.50-1,247,287.62-381,939.06

Finding the Fourth Proportional to 831,650.50, 1,247,287.62 and 381,939.06

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Solution

The fourth proportional to 831,650.50, 1,247,287.62 and 381,939.06 is: 572,822.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,650.50 : 1,247,287.62 = 381,939.06 : x
  2. Step 2: Convert to fraction form
    831,650.50/1,247,287.62 = 381,939.06/x
  3. Step 3: Cross multiply
    831,650.50x = 1,247,287.62 × 381,939.06
  4. Step 4: Simplify right side
    831,650.50x = 476,387,861,132.44
  5. Step 5: Solve for x
    x = 476,387,861,132.44/831,650.50
  6. Step 6: Final answer
    x = 572,822.19

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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.