Home / 2,976,990.97-4,108,123.50-1,687,918.48

Finding the Fourth Proportional to 2,976,990.97, 4,108,123.50 and 1,687,918.48

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Solution

The fourth proportional to 2,976,990.97, 4,108,123.50 and 1,687,918.48 is: 2,329,257.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,976,990.97 : 4,108,123.50 = 1,687,918.48 : x
  2. Step 2: Convert to fraction form
    2,976,990.97/4,108,123.50 = 1,687,918.48/x
  3. Step 3: Cross multiply
    2,976,990.97x = 4,108,123.50 × 1,687,918.48
  4. Step 4: Simplify right side
    2,976,990.97x = 6,934,177,573,772.28
  5. Step 5: Solve for x
    x = 6,934,177,573,772.28/2,976,990.97
  6. Step 6: Final answer
    x = 2,329,257.17

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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.