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Finding the Fourth Proportional to 568,023.27, 783,844.76 and 309,884.85

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Solution

The fourth proportional to 568,023.27, 783,844.76 and 309,884.85 is: 427,626.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,023.27 : 783,844.76 = 309,884.85 : x
  2. Step 2: Convert to fraction form
    568,023.27/783,844.76 = 309,884.85/x
  3. Step 3: Cross multiply
    568,023.27x = 783,844.76 × 309,884.85
  4. Step 4: Simplify right side
    568,023.27x = 242,901,614,326.46
  5. Step 5: Solve for x
    x = 242,901,614,326.46/568,023.27
  6. Step 6: Final answer
    x = 427,626.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.