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Finding the Fourth Proportional to 568,359.83, 784,355.56 and 310,252.07

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Solution

The fourth proportional to 568,359.83, 784,355.56 and 310,252.07 is: 428,158.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,359.83 : 784,355.56 = 310,252.07 : x
  2. Step 2: Convert to fraction form
    568,359.83/784,355.56 = 310,252.07/x
  3. Step 3: Cross multiply
    568,359.83x = 784,355.56 × 310,252.07
  4. Step 4: Simplify right side
    568,359.83x = 243,347,936,854.98
  5. Step 5: Solve for x
    x = 243,347,936,854.98/568,359.83
  6. Step 6: Final answer
    x = 428,158.23

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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.