Home / 569,433.20-853,712.40-320,115.20

Finding the Fourth Proportional to 569,433.20, 853,712.40 and 320,115.20

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Solution

The fourth proportional to 569,433.20, 853,712.40 and 320,115.20 is: 479,926.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,433.20 : 853,712.40 = 320,115.20 : x
  2. Step 2: Convert to fraction form
    569,433.20/853,712.40 = 320,115.20/x
  3. Step 3: Cross multiply
    569,433.20x = 853,712.40 × 320,115.20
  4. Step 4: Simplify right side
    569,433.20x = 273,286,315,668.48
  5. Step 5: Solve for x
    x = 273,286,315,668.48/569,433.20
  6. Step 6: Final answer
    x = 479,926.91

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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.