Home / 990,936.40-1,486,404.60-880,711.60

Finding the Fourth Proportional to 990,936.40, 1,486,404.60 and 880,711.60

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Solution

The fourth proportional to 990,936.40, 1,486,404.60 and 880,711.60 is: 1,321,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,936.40 : 1,486,404.60 = 880,711.60 : x
  2. Step 2: Convert to fraction form
    990,936.40/1,486,404.60 = 880,711.60/x
  3. Step 3: Cross multiply
    990,936.40x = 1,486,404.60 × 880,711.60
  4. Step 4: Simplify right side
    990,936.40x = 1,309,093,773,513.36
  5. Step 5: Solve for x
    x = 1,309,093,773,513.36/990,936.40
  6. Step 6: Final answer
    x = 1,321,067.40

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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.