Home / 456,128.35-629,423.97-252,181.72

Finding the Fourth Proportional to 456,128.35, 629,423.97 and 252,181.72

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Solution

The fourth proportional to 456,128.35, 629,423.97 and 252,181.72 is: 347,992.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,128.35 : 629,423.97 = 252,181.72 : x
  2. Step 2: Convert to fraction form
    456,128.35/629,423.97 = 252,181.72/x
  3. Step 3: Cross multiply
    456,128.35x = 629,423.97 × 252,181.72
  4. Step 4: Simplify right side
    456,128.35x = 158,729,214,955.80
  5. Step 5: Solve for x
    x = 158,729,214,955.80/456,128.35
  6. Step 6: Final answer
    x = 347,992.44

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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.