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Finding the Fourth Proportional to 568,572.56, 784,642.38 and 313,939.88

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Solution

The fourth proportional to 568,572.56, 784,642.38 and 313,939.88 is: 433,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,572.56 : 784,642.38 = 313,939.88 : x
  2. Step 2: Convert to fraction form
    568,572.56/784,642.38 = 313,939.88/x
  3. Step 3: Cross multiply
    568,572.56x = 784,642.38 × 313,939.88
  4. Step 4: Simplify right side
    568,572.56x = 246,330,534,620.11
  5. Step 5: Solve for x
    x = 246,330,534,620.11/568,572.56
  6. Step 6: Final answer
    x = 433,243.80

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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.