Home / 420,697.48-580,563.24-229,706.80

Finding the Fourth Proportional to 420,697.48, 580,563.24 and 229,706.80

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Solution

The fourth proportional to 420,697.48, 580,563.24 and 229,706.80 is: 316,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,697.48 : 580,563.24 = 229,706.80 : x
  2. Step 2: Convert to fraction form
    420,697.48/580,563.24 = 229,706.80/x
  3. Step 3: Cross multiply
    420,697.48x = 580,563.24 × 229,706.80
  4. Step 4: Simplify right side
    420,697.48x = 133,359,324,058.03
  5. Step 5: Solve for x
    x = 133,359,324,058.03/420,697.48
  6. Step 6: Final answer
    x = 316,995.78

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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.