Home / 455,885.20-629,145.66-274,654.18

Finding the Fourth Proportional to 455,885.20, 629,145.66 and 274,654.18

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Solution

The fourth proportional to 455,885.20, 629,145.66 and 274,654.18 is: 379,037.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,885.20 : 629,145.66 = 274,654.18 : x
  2. Step 2: Convert to fraction form
    455,885.20/629,145.66 = 274,654.18/x
  3. Step 3: Cross multiply
    455,885.20x = 629,145.66 × 274,654.18
  4. Step 4: Simplify right side
    455,885.20x = 172,797,485,347.86
  5. Step 5: Solve for x
    x = 172,797,485,347.86/455,885.20
  6. Step 6: Final answer
    x = 379,037.28

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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.