Home / 876,753.20-1,315,204.27-308,085.11

Finding the Fourth Proportional to 876,753.20, 1,315,204.27 and 308,085.11

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Solution

The fourth proportional to 876,753.20, 1,315,204.27 and 308,085.11 is: 462,153.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,753.20 : 1,315,204.27 = 308,085.11 : x
  2. Step 2: Convert to fraction form
    876,753.20/1,315,204.27 = 308,085.11/x
  3. Step 3: Cross multiply
    876,753.20x = 1,315,204.27 × 308,085.11
  4. Step 4: Simplify right side
    876,753.20x = 405,194,852,195.42
  5. Step 5: Solve for x
    x = 405,194,852,195.42/876,753.20
  6. Step 6: Final answer
    x = 462,153.83

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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.