Home / 987,491.87-1,481,237.80-277,519.91

Finding the Fourth Proportional to 987,491.87, 1,481,237.80 and 277,519.91

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Solution

The fourth proportional to 987,491.87, 1,481,237.80 and 277,519.91 is: 416,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,491.87 : 1,481,237.80 = 277,519.91 : x
  2. Step 2: Convert to fraction form
    987,491.87/1,481,237.80 = 277,519.91/x
  3. Step 3: Cross multiply
    987,491.87x = 1,481,237.80 × 277,519.91
  4. Step 4: Simplify right side
    987,491.87x = 411,072,972,844.61
  5. Step 5: Solve for x
    x = 411,072,972,844.61/987,491.87
  6. Step 6: Final answer
    x = 416,279.86

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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.