Home / 979,760.38-1,469,733.50-380,767.80

Finding the Fourth Proportional to 979,760.38, 1,469,733.50 and 380,767.80

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Solution

The fourth proportional to 979,760.38, 1,469,733.50 and 380,767.80 is: 571,187.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,760.38 : 1,469,733.50 = 380,767.80 : x
  2. Step 2: Convert to fraction form
    979,760.38/1,469,733.50 = 380,767.80/x
  3. Step 3: Cross multiply
    979,760.38x = 1,469,733.50 × 380,767.80
  4. Step 4: Simplify right side
    979,760.38x = 559,627,191,381.30
  5. Step 5: Solve for x
    x = 559,627,191,381.30/979,760.38
  6. Step 6: Final answer
    x = 571,187.82

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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.