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Finding the Fourth Proportional to 568,818.91, 784,965.43 and 310,696.02

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Solution

The fourth proportional to 568,818.91, 784,965.43 and 310,696.02 is: 428,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,818.91 : 784,965.43 = 310,696.02 : x
  2. Step 2: Convert to fraction form
    568,818.91/784,965.43 = 310,696.02/x
  3. Step 3: Cross multiply
    568,818.91x = 784,965.43 × 310,696.02
  4. Step 4: Simplify right side
    568,818.91x = 243,885,634,938.59
  5. Step 5: Solve for x
    x = 243,885,634,938.59/568,818.91
  6. Step 6: Final answer
    x = 428,757.96

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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.