Home / 853,242.85-1,279,369.13-403,959.93

Finding the Fourth Proportional to 853,242.85, 1,279,369.13 and 403,959.93

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Solution

The fourth proportional to 853,242.85, 1,279,369.13 and 403,959.93 is: 605,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,242.85 : 1,279,369.13 = 403,959.93 : x
  2. Step 2: Convert to fraction form
    853,242.85/1,279,369.13 = 403,959.93/x
  3. Step 3: Cross multiply
    853,242.85x = 1,279,369.13 × 403,959.93
  4. Step 4: Simplify right side
    853,242.85x = 516,813,864,198.96
  5. Step 5: Solve for x
    x = 516,813,864,198.96/853,242.85
  6. Step 6: Final answer
    x = 605,705.47

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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.