Home / 644,221.06-888,960.09-376,104.58

Finding the Fourth Proportional to 644,221.06, 888,960.09 and 376,104.58

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Solution

The fourth proportional to 644,221.06, 888,960.09 and 376,104.58 is: 518,986.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,221.06 : 888,960.09 = 376,104.58 : x
  2. Step 2: Convert to fraction form
    644,221.06/888,960.09 = 376,104.58/x
  3. Step 3: Cross multiply
    644,221.06x = 888,960.09 × 376,104.58
  4. Step 4: Simplify right side
    644,221.06x = 334,341,961,286.21
  5. Step 5: Solve for x
    x = 334,341,961,286.21/644,221.06
  6. Step 6: Final answer
    x = 518,986.39

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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.