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Finding the Fourth Proportional to 701,323.91, 967,778.42 and 395,411.21

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Solution

The fourth proportional to 701,323.91, 967,778.42 and 395,411.21 is: 545,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,323.91 : 967,778.42 = 395,411.21 : x
  2. Step 2: Convert to fraction form
    701,323.91/967,778.42 = 395,411.21/x
  3. Step 3: Cross multiply
    701,323.91x = 967,778.42 × 395,411.21
  4. Step 4: Simplify right side
    701,323.91x = 382,670,429,248.14
  5. Step 5: Solve for x
    x = 382,670,429,248.14/701,323.91
  6. Step 6: Final answer
    x = 545,640.08

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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.