Home / 420,949.11-580,887.93-229,925.61

Finding the Fourth Proportional to 420,949.11, 580,887.93 and 229,925.61

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Solution

The fourth proportional to 420,949.11, 580,887.93 and 229,925.61 is: 317,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,949.11 : 580,887.93 = 229,925.61 : x
  2. Step 2: Convert to fraction form
    420,949.11/580,887.93 = 229,925.61/x
  3. Step 3: Cross multiply
    420,949.11x = 580,887.93 × 229,925.61
  4. Step 4: Simplify right side
    420,949.11x = 133,561,011,646.89
  5. Step 5: Solve for x
    x = 133,561,011,646.89/420,949.11
  6. Step 6: Final answer
    x = 317,285.41

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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.