Home / 674,919.12-1,011,995.28-275,091.60

Finding the Fourth Proportional to 674,919.12, 1,011,995.28 and 275,091.60

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Solution

The fourth proportional to 674,919.12, 1,011,995.28 and 275,091.60 is: 412,481.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,919.12 : 1,011,995.28 = 275,091.60 : x
  2. Step 2: Convert to fraction form
    674,919.12/1,011,995.28 = 275,091.60/x
  3. Step 3: Cross multiply
    674,919.12x = 1,011,995.28 × 275,091.60
  4. Step 4: Simplify right side
    674,919.12x = 278,391,400,767.65
  5. Step 5: Solve for x
    x = 278,391,400,767.65/674,919.12
  6. Step 6: Final answer
    x = 412,481.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.