Home / 853,145.62-1,279,952.21-373,286.43

Finding the Fourth Proportional to 853,145.62, 1,279,952.21 and 373,286.43

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Solution

The fourth proportional to 853,145.62, 1,279,952.21 and 373,286.43 is: 560,031.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,145.62 : 1,279,952.21 = 373,286.43 : x
  2. Step 2: Convert to fraction form
    853,145.62/1,279,952.21 = 373,286.43/x
  3. Step 3: Cross multiply
    853,145.62x = 1,279,952.21 × 373,286.43
  4. Step 4: Simplify right side
    853,145.62x = 477,788,791,041.51
  5. Step 5: Solve for x
    x = 477,788,791,041.51/853,145.62
  6. Step 6: Final answer
    x = 560,031.93

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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.