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Finding the Fourth Proportional to 492,091.68, 679,196.88 and 322,227.12

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Solution

The fourth proportional to 492,091.68, 679,196.88 and 322,227.12 is: 444,745.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,091.68 : 679,196.88 = 322,227.12 : x
  2. Step 2: Convert to fraction form
    492,091.68/679,196.88 = 322,227.12/x
  3. Step 3: Cross multiply
    492,091.68x = 679,196.88 × 322,227.12
  4. Step 4: Simplify right side
    492,091.68x = 218,855,654,555.39
  5. Step 5: Solve for x
    x = 218,855,654,555.39/492,091.68
  6. Step 6: Final answer
    x = 444,745.69

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Similar ratio
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1.5x scale

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.