Home / 814,872.66-1,222,374.33-309,675.66

Finding the Fourth Proportional to 814,872.66, 1,222,374.33 and 309,675.66

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Solution

The fourth proportional to 814,872.66, 1,222,374.33 and 309,675.66 is: 464,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,872.66 : 1,222,374.33 = 309,675.66 : x
  2. Step 2: Convert to fraction form
    814,872.66/1,222,374.33 = 309,675.66/x
  3. Step 3: Cross multiply
    814,872.66x = 1,222,374.33 × 309,675.66
  4. Step 4: Simplify right side
    814,872.66x = 378,539,577,409.81
  5. Step 5: Solve for x
    x = 378,539,577,409.81/814,872.66
  6. Step 6: Final answer
    x = 464,538.32

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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.