Home / 1,990,838.70-2,747,591.10-1,131,528.13

Finding the Fourth Proportional to 1,990,838.70, 2,747,591.10 and 1,131,528.13

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Solution

The fourth proportional to 1,990,838.70, 2,747,591.10 and 1,131,528.13 is: 1,561,641.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,838.70 : 2,747,591.10 = 1,131,528.13 : x
  2. Step 2: Convert to fraction form
    1,990,838.70/2,747,591.10 = 1,131,528.13/x
  3. Step 3: Cross multiply
    1,990,838.70x = 2,747,591.10 × 1,131,528.13
  4. Step 4: Simplify right side
    1,990,838.70x = 3,108,976,612,518.67
  5. Step 5: Solve for x
    x = 3,108,976,612,518.67/1,990,838.70
  6. Step 6: Final answer
    x = 1,561,641.64

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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.