Home / 1,040,233.80-1,560,350.70-740,080.20

Finding the Fourth Proportional to 1,040,233.80, 1,560,350.70 and 740,080.20

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Solution

The fourth proportional to 1,040,233.80, 1,560,350.70 and 740,080.20 is: 1,110,120.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,233.80 : 1,560,350.70 = 740,080.20 : x
  2. Step 2: Convert to fraction form
    1,040,233.80/1,560,350.70 = 740,080.20/x
  3. Step 3: Cross multiply
    1,040,233.80x = 1,560,350.70 × 740,080.20
  4. Step 4: Simplify right side
    1,040,233.80x = 1,154,784,658,126.14
  5. Step 5: Solve for x
    x = 1,154,784,658,126.14/1,040,233.80
  6. Step 6: Final answer
    x = 1,110,120.30

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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.