Home / 455,823.06-629,439.30-284,034.22

Finding the Fourth Proportional to 455,823.06, 629,439.30 and 284,034.22

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Solution

The fourth proportional to 455,823.06, 629,439.30 and 284,034.22 is: 392,218.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,823.06 : 629,439.30 = 284,034.22 : x
  2. Step 2: Convert to fraction form
    455,823.06/629,439.30 = 284,034.22/x
  3. Step 3: Cross multiply
    455,823.06x = 629,439.30 × 284,034.22
  4. Step 4: Simplify right side
    455,823.06x = 178,782,300,612.85
  5. Step 5: Solve for x
    x = 178,782,300,612.85/455,823.06
  6. Step 6: Final answer
    x = 392,218.64

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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.