Home / 454,986.30-682,479.45-313,268.70

Finding the Fourth Proportional to 454,986.30, 682,479.45 and 313,268.70

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Solution

The fourth proportional to 454,986.30, 682,479.45 and 313,268.70 is: 469,903.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,986.30 : 682,479.45 = 313,268.70 : x
  2. Step 2: Convert to fraction form
    454,986.30/682,479.45 = 313,268.70/x
  3. Step 3: Cross multiply
    454,986.30x = 682,479.45 × 313,268.70
  4. Step 4: Simplify right side
    454,986.30x = 213,799,450,078.22
  5. Step 5: Solve for x
    x = 213,799,450,078.22/454,986.30
  6. Step 6: Final answer
    x = 469,903.05

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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.