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Finding the Fourth Proportional to 568,836.27, 784,988.76 and 310,713.15

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Solution

The fourth proportional to 568,836.27, 784,988.76 and 310,713.15 is: 428,781.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,836.27 : 784,988.76 = 310,713.15 : x
  2. Step 2: Convert to fraction form
    568,836.27/784,988.76 = 310,713.15/x
  3. Step 3: Cross multiply
    568,836.27x = 784,988.76 × 310,713.15
  4. Step 4: Simplify right side
    568,836.27x = 243,906,330,334.19
  5. Step 5: Solve for x
    x = 243,906,330,334.19/568,836.27
  6. Step 6: Final answer
    x = 428,781.26

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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.