Home / 1,986,386.24-2,741,275.20-1,126,982.72

Finding the Fourth Proportional to 1,986,386.24, 2,741,275.20 and 1,126,982.72

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Solution

The fourth proportional to 1,986,386.24, 2,741,275.20 and 1,126,982.72 is: 1,555,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,386.24 : 2,741,275.20 = 1,126,982.72 : x
  2. Step 2: Convert to fraction form
    1,986,386.24/2,741,275.20 = 1,126,982.72/x
  3. Step 3: Cross multiply
    1,986,386.24x = 2,741,275.20 × 1,126,982.72
  4. Step 4: Simplify right side
    1,986,386.24x = 3,089,369,781,164.54
  5. Step 5: Solve for x
    x = 3,089,369,781,164.54/1,986,386.24
  6. Step 6: Final answer
    x = 1,555,271.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.