Home / 1,345,958.40-2,020,687.20-1,080,019.20

Finding the Fourth Proportional to 1,345,958.40, 2,020,687.20 and 1,080,019.20

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Solution

The fourth proportional to 1,345,958.40, 2,020,687.20 and 1,080,019.20 is: 1,621,432.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,958.40 : 2,020,687.20 = 1,080,019.20 : x
  2. Step 2: Convert to fraction form
    1,345,958.40/2,020,687.20 = 1,080,019.20/x
  3. Step 3: Cross multiply
    1,345,958.40x = 2,020,687.20 × 1,080,019.20
  4. Step 4: Simplify right side
    1,345,958.40x = 2,182,380,973,194.24
  5. Step 5: Solve for x
    x = 2,182,380,973,194.24/1,345,958.40
  6. Step 6: Final answer
    x = 1,621,432.71

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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.