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Finding the Fourth Proportional to 568,871.54, 784,617.13 and 396,798.38

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Solution

The fourth proportional to 568,871.54, 784,617.13 and 396,798.38 is: 547,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,871.54 : 784,617.13 = 396,798.38 : x
  2. Step 2: Convert to fraction form
    568,871.54/784,617.13 = 396,798.38/x
  3. Step 3: Cross multiply
    568,871.54x = 784,617.13 × 396,798.38
  4. Step 4: Simplify right side
    568,871.54x = 311,334,806,104.25
  5. Step 5: Solve for x
    x = 311,334,806,104.25/568,871.54
  6. Step 6: Final answer
    x = 547,284.90

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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.