Home / 420,925.44-580,867.56-229,939.68

Finding the Fourth Proportional to 420,925.44, 580,867.56 and 229,939.68

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Solution

The fourth proportional to 420,925.44, 580,867.56 and 229,939.68 is: 317,311.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,925.44 : 580,867.56 = 229,939.68 : x
  2. Step 2: Convert to fraction form
    420,925.44/580,867.56 = 229,939.68/x
  3. Step 3: Cross multiply
    420,925.44x = 580,867.56 × 229,939.68
  4. Step 4: Simplify right side
    420,925.44x = 133,564,500,868.78
  5. Step 5: Solve for x
    x = 133,564,500,868.78/420,925.44
  6. Step 6: Final answer
    x = 317,311.54

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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.