Home / 420,845.34-580,766.54-229,859.18

Finding the Fourth Proportional to 420,845.34, 580,766.54 and 229,859.18

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Solution

The fourth proportional to 420,845.34, 580,766.54 and 229,859.18 is: 317,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,845.34 : 580,766.54 = 229,859.18 : x
  2. Step 2: Convert to fraction form
    420,845.34/580,766.54 = 229,859.18/x
  3. Step 3: Cross multiply
    420,845.34x = 580,766.54 × 229,859.18
  4. Step 4: Simplify right side
    420,845.34x = 133,494,520,655.84
  5. Step 5: Solve for x
    x = 133,494,520,655.84/420,845.34
  6. Step 6: Final answer
    x = 317,205.65

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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.