Home / 456,824.90-685,377.48-204,317.78

Finding the Fourth Proportional to 456,824.90, 685,377.48 and 204,317.78

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Solution

The fourth proportional to 456,824.90, 685,377.48 and 204,317.78 is: 306,539.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,824.90 : 685,377.48 = 204,317.78 : x
  2. Step 2: Convert to fraction form
    456,824.90/685,377.48 = 204,317.78/x
  3. Step 3: Cross multiply
    456,824.90x = 685,377.48 × 204,317.78
  4. Step 4: Simplify right side
    456,824.90x = 140,034,805,175.59
  5. Step 5: Solve for x
    x = 140,034,805,175.59/456,824.90
  6. Step 6: Final answer
    x = 306,539.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.