Home / 1,325,855.20-1,829,679.60-722,243.20

Finding the Fourth Proportional to 1,325,855.20, 1,829,679.60 and 722,243.20

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Solution

The fourth proportional to 1,325,855.20, 1,829,679.60 and 722,243.20 is: 996,695.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,855.20 : 1,829,679.60 = 722,243.20 : x
  2. Step 2: Convert to fraction form
    1,325,855.20/1,829,679.60 = 722,243.20/x
  3. Step 3: Cross multiply
    1,325,855.20x = 1,829,679.60 × 722,243.20
  4. Step 4: Simplify right side
    1,325,855.20x = 1,321,473,649,278.72
  5. Step 5: Solve for x
    x = 1,321,473,649,278.72/1,325,855.20
  6. Step 6: Final answer
    x = 996,695.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.