Home / 1,389,224.40-2,080,337.40-1,109,288.40

Finding the Fourth Proportional to 1,389,224.40, 2,080,337.40 and 1,109,288.40

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Solution

The fourth proportional to 1,389,224.40, 2,080,337.40 and 1,109,288.40 is: 1,661,138.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,224.40 : 2,080,337.40 = 1,109,288.40 : x
  2. Step 2: Convert to fraction form
    1,389,224.40/2,080,337.40 = 1,109,288.40/x
  3. Step 3: Cross multiply
    1,389,224.40x = 2,080,337.40 × 1,109,288.40
  4. Step 4: Simplify right side
    1,389,224.40x = 2,307,694,145,906.16
  5. Step 5: Solve for x
    x = 2,307,694,145,906.16/1,389,224.40
  6. Step 6: Final answer
    x = 1,661,138.51

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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.