Home / 2,179,936.20-3,271,070.70-917,891.40

Finding the Fourth Proportional to 2,179,936.20, 3,271,070.70 and 917,891.40

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Solution

The fourth proportional to 2,179,936.20, 3,271,070.70 and 917,891.40 is: 1,377,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179,936.20 : 3,271,070.70 = 917,891.40 : x
  2. Step 2: Convert to fraction form
    2,179,936.20/3,271,070.70 = 917,891.40/x
  3. Step 3: Cross multiply
    2,179,936.20x = 3,271,070.70 × 917,891.40
  4. Step 4: Simplify right side
    2,179,936.20x = 3,002,487,664,321.98
  5. Step 5: Solve for x
    x = 3,002,487,664,321.98/2,179,936.20
  6. Step 6: Final answer
    x = 1,377,328.23

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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.