Home / 455,887.20-629,148.42-274,656.18

Finding the Fourth Proportional to 455,887.20, 629,148.42 and 274,656.18

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Solution

The fourth proportional to 455,887.20, 629,148.42 and 274,656.18 is: 379,040.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,887.20 : 629,148.42 = 274,656.18 : x
  2. Step 2: Convert to fraction form
    455,887.20/629,148.42 = 274,656.18/x
  3. Step 3: Cross multiply
    455,887.20x = 629,148.42 × 274,656.18
  4. Step 4: Simplify right side
    455,887.20x = 172,799,501,690.24
  5. Step 5: Solve for x
    x = 172,799,501,690.24/455,887.20
  6. Step 6: Final answer
    x = 379,040.04

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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.