Home / 1,216,046.52-1,678,144.56-664,764.62

Finding the Fourth Proportional to 1,216,046.52, 1,678,144.56 and 664,764.62

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Solution

The fourth proportional to 1,216,046.52, 1,678,144.56 and 664,764.62 is: 917,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,046.52 : 1,678,144.56 = 664,764.62 : x
  2. Step 2: Convert to fraction form
    1,216,046.52/1,678,144.56 = 664,764.62/x
  3. Step 3: Cross multiply
    1,216,046.52x = 1,678,144.56 × 664,764.62
  4. Step 4: Simplify right side
    1,216,046.52x = 1,115,571,131,159.09
  5. Step 5: Solve for x
    x = 1,115,571,131,159.09/1,216,046.52
  6. Step 6: Final answer
    x = 917,375.37

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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.