Home / 420,895.54-580,814.15-229,872.03

Finding the Fourth Proportional to 420,895.54, 580,814.15 and 229,872.03

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Solution

The fourth proportional to 420,895.54, 580,814.15 and 229,872.03 is: 317,211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,895.54 : 580,814.15 = 229,872.03 : x
  2. Step 2: Convert to fraction form
    420,895.54/580,814.15 = 229,872.03/x
  3. Step 3: Cross multiply
    420,895.54x = 580,814.15 × 229,872.03
  4. Step 4: Simplify right side
    420,895.54x = 133,512,924,385.81
  5. Step 5: Solve for x
    x = 133,512,924,385.81/420,895.54
  6. Step 6: Final answer
    x = 317,211.54

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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.