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Finding the Fourth Proportional to 568,906.38, 853,484.21 and 213,920.40

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Solution

The fourth proportional to 568,906.38, 853,484.21 and 213,920.40 is: 320,927.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,906.38 : 853,484.21 = 213,920.40 : x
  2. Step 2: Convert to fraction form
    568,906.38/853,484.21 = 213,920.40/x
  3. Step 3: Cross multiply
    568,906.38x = 853,484.21 × 213,920.40
  4. Step 4: Simplify right side
    568,906.38x = 182,577,682,527.28
  5. Step 5: Solve for x
    x = 182,577,682,527.28/568,906.38
  6. Step 6: Final answer
    x = 320,927.47

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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.