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Finding the Fourth Proportional to 701,355.17, 967,850.78 and 395,428.91

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Solution

The fourth proportional to 701,355.17, 967,850.78 and 395,428.91 is: 545,680.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,355.17 : 967,850.78 = 395,428.91 : x
  2. Step 2: Convert to fraction form
    701,355.17/967,850.78 = 395,428.91/x
  3. Step 3: Cross multiply
    701,355.17x = 967,850.78 × 395,428.91
  4. Step 4: Simplify right side
    701,355.17x = 382,716,172,161.65
  5. Step 5: Solve for x
    x = 382,716,172,161.65/701,355.17
  6. Step 6: Final answer
    x = 545,680.97

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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.