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Finding the Fourth Proportional to 568,806.72, 784,886.13 and 314,142.72

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Solution

The fourth proportional to 568,806.72, 784,886.13 and 314,142.72 is: 433,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,806.72 : 784,886.13 = 314,142.72 : x
  2. Step 2: Convert to fraction form
    568,806.72/784,886.13 = 314,142.72/x
  3. Step 3: Cross multiply
    568,806.72x = 784,886.13 × 314,142.72
  4. Step 4: Simplify right side
    568,806.72x = 246,566,263,768.47
  5. Step 5: Solve for x
    x = 246,566,263,768.47/568,806.72
  6. Step 6: Final answer
    x = 433,479.87

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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.