Home / 1,389,115.80-2,080,563.30-1,140,283.80

Finding the Fourth Proportional to 1,389,115.80, 2,080,563.30 and 1,140,283.80

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Solution

The fourth proportional to 1,389,115.80, 2,080,563.30 and 1,140,283.80 is: 1,707,872.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,115.80 : 2,080,563.30 = 1,140,283.80 : x
  2. Step 2: Convert to fraction form
    1,389,115.80/2,080,563.30 = 1,140,283.80/x
  3. Step 3: Cross multiply
    1,389,115.80x = 2,080,563.30 × 1,140,283.80
  4. Step 4: Simplify right side
    1,389,115.80x = 2,372,432,625,864.54
  5. Step 5: Solve for x
    x = 2,372,432,625,864.54/1,389,115.80
  6. Step 6: Final answer
    x = 1,707,872.47

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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.