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Finding the Fourth Proportional to 701,065.50, 967,470.39 and 399,287.58

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Solution

The fourth proportional to 701,065.50, 967,470.39 and 399,287.58 is: 551,016.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,065.50 : 967,470.39 = 399,287.58 : x
  2. Step 2: Convert to fraction form
    701,065.50/967,470.39 = 399,287.58/x
  3. Step 3: Cross multiply
    701,065.50x = 967,470.39 × 399,287.58
  4. Step 4: Simplify right side
    701,065.50x = 386,298,910,744.76
  5. Step 5: Solve for x
    x = 386,298,910,744.76/701,065.50
  6. Step 6: Final answer
    x = 551,016.86

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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.