Home / 2,155,387.20-3,233,080.80-1,315,579.20

Finding the Fourth Proportional to 2,155,387.20, 3,233,080.80 and 1,315,579.20

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Solution

The fourth proportional to 2,155,387.20, 3,233,080.80 and 1,315,579.20 is: 1,973,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,387.20 : 3,233,080.80 = 1,315,579.20 : x
  2. Step 2: Convert to fraction form
    2,155,387.20/3,233,080.80 = 1,315,579.20/x
  3. Step 3: Cross multiply
    2,155,387.20x = 3,233,080.80 × 1,315,579.20
  4. Step 4: Simplify right side
    2,155,387.20x = 4,253,373,852,399.36
  5. Step 5: Solve for x
    x = 4,253,373,852,399.36/2,155,387.20
  6. Step 6: Final answer
    x = 1,973,368.80

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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.