Home / 1,392,220.80-2,085,220.80-1,143,388.80

Finding the Fourth Proportional to 1,392,220.80, 2,085,220.80 and 1,143,388.80

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Solution

The fourth proportional to 1,392,220.80, 2,085,220.80 and 1,143,388.80 is: 1,712,528.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,220.80 : 2,085,220.80 = 1,143,388.80 : x
  2. Step 2: Convert to fraction form
    1,392,220.80/2,085,220.80 = 1,143,388.80/x
  3. Step 3: Cross multiply
    1,392,220.80x = 2,085,220.80 × 1,143,388.80
  4. Step 4: Simplify right side
    1,392,220.80x = 2,384,218,108,247.04
  5. Step 5: Solve for x
    x = 2,384,218,108,247.04/1,392,220.80
  6. Step 6: Final answer
    x = 1,712,528.72

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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.