Home / 853,121.69-1,279,921.68-373,391.30

Finding the Fourth Proportional to 853,121.69, 1,279,921.68 and 373,391.30

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Solution

The fourth proportional to 853,121.69, 1,279,921.68 and 373,391.30 is: 560,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,121.69 : 1,279,921.68 = 373,391.30 : x
  2. Step 2: Convert to fraction form
    853,121.69/1,279,921.68 = 373,391.30/x
  3. Step 3: Cross multiply
    853,121.69x = 1,279,921.68 × 373,391.30
  4. Step 4: Simplify right side
    853,121.69x = 477,911,613,593.78
  5. Step 5: Solve for x
    x = 477,911,613,593.78/853,121.69
  6. Step 6: Final answer
    x = 560,191.61

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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.