Home / 492,780.11-680,037.54-266,425.61

Finding the Fourth Proportional to 492,780.11, 680,037.54 and 266,425.61

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Solution

The fourth proportional to 492,780.11, 680,037.54 and 266,425.61 is: 367,667.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,780.11 : 680,037.54 = 266,425.61 : x
  2. Step 2: Convert to fraction form
    492,780.11/680,037.54 = 266,425.61/x
  3. Step 3: Cross multiply
    492,780.11x = 680,037.54 × 266,425.61
  4. Step 4: Simplify right side
    492,780.11x = 181,179,416,417.40
  5. Step 5: Solve for x
    x = 181,179,416,417.40/492,780.11
  6. Step 6: Final answer
    x = 367,667.88

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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.