Home / 483,531.30-667,120.41-289,899.18

Finding the Fourth Proportional to 483,531.30, 667,120.41 and 289,899.18

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Solution

The fourth proportional to 483,531.30, 667,120.41 and 289,899.18 is: 399,969.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,531.30 : 667,120.41 = 289,899.18 : x
  2. Step 2: Convert to fraction form
    483,531.30/667,120.41 = 289,899.18/x
  3. Step 3: Cross multiply
    483,531.30x = 667,120.41 × 289,899.18
  4. Step 4: Simplify right side
    483,531.30x = 193,397,659,820.26
  5. Step 5: Solve for x
    x = 193,397,659,820.26/483,531.30
  6. Step 6: Final answer
    x = 399,969.27

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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.