Home / 674,613.70-1,011,920.55-253,983.94

Finding the Fourth Proportional to 674,613.70, 1,011,920.55 and 253,983.94

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Solution

The fourth proportional to 674,613.70, 1,011,920.55 and 253,983.94 is: 380,975.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,613.70 : 1,011,920.55 = 253,983.94 : x
  2. Step 2: Convert to fraction form
    674,613.70/1,011,920.55 = 253,983.94/x
  3. Step 3: Cross multiply
    674,613.70x = 1,011,920.55 × 253,983.94
  4. Step 4: Simplify right side
    674,613.70x = 257,011,568,255.97
  5. Step 5: Solve for x
    x = 257,011,568,255.97/674,613.70
  6. Step 6: Final answer
    x = 380,975.91

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Similar ratio
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1.5x scale

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.