Home / 853,467.02-1,279,919.12-284,691.38

Finding the Fourth Proportional to 853,467.02, 1,279,919.12 and 284,691.38

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Solution

The fourth proportional to 853,467.02, 1,279,919.12 and 284,691.38 is: 426,943.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,467.02 : 1,279,919.12 = 284,691.38 : x
  2. Step 2: Convert to fraction form
    853,467.02/1,279,919.12 = 284,691.38/x
  3. Step 3: Cross multiply
    853,467.02x = 1,279,919.12 × 284,691.38
  4. Step 4: Simplify right side
    853,467.02x = 364,381,932,738.13
  5. Step 5: Solve for x
    x = 364,381,932,738.13/853,467.02
  6. Step 6: Final answer
    x = 426,943.19

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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.