Home / 1,898,161.20-2,619,462.20-1,038,721.23

Finding the Fourth Proportional to 1,898,161.20, 2,619,462.20 and 1,038,721.23

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Solution

The fourth proportional to 1,898,161.20, 2,619,462.20 and 1,038,721.23 is: 1,433,435.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,898,161.20 : 2,619,462.20 = 1,038,721.23 : x
  2. Step 2: Convert to fraction form
    1,898,161.20/2,619,462.20 = 1,038,721.23/x
  3. Step 3: Cross multiply
    1,898,161.20x = 2,619,462.20 × 1,038,721.23
  4. Step 4: Simplify right side
    1,898,161.20x = 2,720,890,993,128.90
  5. Step 5: Solve for x
    x = 2,720,890,993,128.90/1,898,161.20
  6. Step 6: Final answer
    x = 1,433,435.15

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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.