Home / 2,428,020.80-3,642,617.64-911,720.24

Finding the Fourth Proportional to 2,428,020.80, 3,642,617.64 and 911,720.24

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Solution

The fourth proportional to 2,428,020.80, 3,642,617.64 and 911,720.24 is: 1,367,800.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,428,020.80 : 3,642,617.64 = 911,720.24 : x
  2. Step 2: Convert to fraction form
    2,428,020.80/3,642,617.64 = 911,720.24/x
  3. Step 3: Cross multiply
    2,428,020.80x = 3,642,617.64 × 911,720.24
  4. Step 4: Simplify right side
    2,428,020.80x = 3,321,048,228,969.03
  5. Step 5: Solve for x
    x = 3,321,048,228,969.03/2,428,020.80
  6. Step 6: Final answer
    x = 1,367,800.57

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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.