Home / 1,147,237.20-1,720,855.80-726,987.60

Finding the Fourth Proportional to 1,147,237.20, 1,720,855.80 and 726,987.60

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Solution

The fourth proportional to 1,147,237.20, 1,720,855.80 and 726,987.60 is: 1,090,481.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,237.20 : 1,720,855.80 = 726,987.60 : x
  2. Step 2: Convert to fraction form
    1,147,237.20/1,720,855.80 = 726,987.60/x
  3. Step 3: Cross multiply
    1,147,237.20x = 1,720,855.80 × 726,987.60
  4. Step 4: Simplify right side
    1,147,237.20x = 1,251,040,827,988.08
  5. Step 5: Solve for x
    x = 1,251,040,827,988.08/1,147,237.20
  6. Step 6: Final answer
    x = 1,090,481.40

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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.