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Finding the Fourth Proportional to 568,275.00, 784,213.36 and 310,149.85

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Solution

The fourth proportional to 568,275.00, 784,213.36 and 310,149.85 is: 428,003.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,275.00 : 784,213.36 = 310,149.85 : x
  2. Step 2: Convert to fraction form
    568,275.00/784,213.36 = 310,149.85/x
  3. Step 3: Cross multiply
    568,275.00x = 784,213.36 × 310,149.85
  4. Step 4: Simplify right side
    568,275.00x = 243,223,657,002.49
  5. Step 5: Solve for x
    x = 243,223,657,002.49/568,275.00
  6. Step 6: Final answer
    x = 428,003.44

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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.