Home / 455,005.20-627,910.55-251,063.66

Finding the Fourth Proportional to 455,005.20, 627,910.55 and 251,063.66

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Solution

The fourth proportional to 455,005.20, 627,910.55 and 251,063.66 is: 346,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,005.20 : 627,910.55 = 251,063.66 : x
  2. Step 2: Convert to fraction form
    455,005.20/627,910.55 = 251,063.66/x
  3. Step 3: Cross multiply
    455,005.20x = 627,910.55 × 251,063.66
  4. Step 4: Simplify right side
    455,005.20x = 157,645,520,835.61
  5. Step 5: Solve for x
    x = 157,645,520,835.61/455,005.20
  6. Step 6: Final answer
    x = 346,469.71

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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.