Home / 1,321,282.80-1,982,701.80-479,919.60

Finding the Fourth Proportional to 1,321,282.80, 1,982,701.80 and 479,919.60

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Solution

The fourth proportional to 1,321,282.80, 1,982,701.80 and 479,919.60 is: 720,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,282.80 : 1,982,701.80 = 479,919.60 : x
  2. Step 2: Convert to fraction form
    1,321,282.80/1,982,701.80 = 479,919.60/x
  3. Step 3: Cross multiply
    1,321,282.80x = 1,982,701.80 × 479,919.60
  4. Step 4: Simplify right side
    1,321,282.80x = 951,537,454,775.28
  5. Step 5: Solve for x
    x = 951,537,454,775.28/1,321,282.80
  6. Step 6: Final answer
    x = 720,161.84

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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.