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Finding the Fourth Proportional to 568,142.67, 784,320.74 and 353,351.97

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Solution

The fourth proportional to 568,142.67, 784,320.74 and 353,351.97 is: 487,802.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,142.67 : 784,320.74 = 353,351.97 : x
  2. Step 2: Convert to fraction form
    568,142.67/784,320.74 = 353,351.97/x
  3. Step 3: Cross multiply
    568,142.67x = 784,320.74 × 353,351.97
  4. Step 4: Simplify right side
    568,142.67x = 277,141,276,824.10
  5. Step 5: Solve for x
    x = 277,141,276,824.10/568,142.67
  6. Step 6: Final answer
    x = 487,802.26

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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.