Home / 979,791.86-1,469,780.24-380,798.89

Finding the Fourth Proportional to 979,791.86, 1,469,780.24 and 380,798.89

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Solution

The fourth proportional to 979,791.86, 1,469,780.24 and 380,798.89 is: 571,234.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,791.86 : 1,469,780.24 = 380,798.89 : x
  2. Step 2: Convert to fraction form
    979,791.86/1,469,780.24 = 380,798.89/x
  3. Step 3: Cross multiply
    979,791.86x = 1,469,780.24 × 380,798.89
  4. Step 4: Simplify right side
    979,791.86x = 559,690,678,357.49
  5. Step 5: Solve for x
    x = 559,690,678,357.49/979,791.86
  6. Step 6: Final answer
    x = 571,234.26

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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.