Home / 853,923.13-1,279,773.34-347,891.42

Finding the Fourth Proportional to 853,923.13, 1,279,773.34 and 347,891.42

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Solution

The fourth proportional to 853,923.13, 1,279,773.34 and 347,891.42 is: 521,384.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,923.13 : 1,279,773.34 = 347,891.42 : x
  2. Step 2: Convert to fraction form
    853,923.13/1,279,773.34 = 347,891.42/x
  3. Step 3: Cross multiply
    853,923.13x = 1,279,773.34 × 347,891.42
  4. Step 4: Simplify right side
    853,923.13x = 445,222,166,860.45
  5. Step 5: Solve for x
    x = 445,222,166,860.45/853,923.13
  6. Step 6: Final answer
    x = 521,384.36

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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.