Home / 853,067.20-1,279,255.20-291,812.80

Finding the Fourth Proportional to 853,067.20, 1,279,255.20 and 291,812.80

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Solution

The fourth proportional to 853,067.20, 1,279,255.20 and 291,812.80 is: 437,600.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,067.20 : 1,279,255.20 = 291,812.80 : x
  2. Step 2: Convert to fraction form
    853,067.20/1,279,255.20 = 291,812.80/x
  3. Step 3: Cross multiply
    853,067.20x = 1,279,255.20 × 291,812.80
  4. Step 4: Simplify right side
    853,067.20x = 373,303,041,826.56
  5. Step 5: Solve for x
    x = 373,303,041,826.56/853,067.20
  6. Step 6: Final answer
    x = 437,600.98

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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.