Home / 393,006.38-589,488.89-126,766.94

Finding the Fourth Proportional to 393,006.38, 589,488.89 and 126,766.94

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Solution

The fourth proportional to 393,006.38, 589,488.89 and 126,766.94 is: 190,143.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,006.38 : 589,488.89 = 126,766.94 : x
  2. Step 2: Convert to fraction form
    393,006.38/589,488.89 = 126,766.94/x
  3. Step 3: Cross multiply
    393,006.38x = 589,488.89 × 126,766.94
  4. Step 4: Simplify right side
    393,006.38x = 74,727,699,168.02
  5. Step 5: Solve for x
    x = 74,727,699,168.02/393,006.38
  6. Step 6: Final answer
    x = 190,143.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.