Home / 1,325,780.20-1,986,629.10-987,232.60

Finding the Fourth Proportional to 1,325,780.20, 1,986,629.10 and 987,232.60

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Solution

The fourth proportional to 1,325,780.20, 1,986,629.10 and 987,232.60 is: 1,479,328.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,780.20 : 1,986,629.10 = 987,232.60 : x
  2. Step 2: Convert to fraction form
    1,325,780.20/1,986,629.10 = 987,232.60/x
  3. Step 3: Cross multiply
    1,325,780.20x = 1,986,629.10 × 987,232.60
  4. Step 4: Simplify right side
    1,325,780.20x = 1,961,265,011,628.66
  5. Step 5: Solve for x
    x = 1,961,265,011,628.66/1,325,780.20
  6. Step 6: Final answer
    x = 1,479,328.94

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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.