Home / 1,981,506.80-2,972,260.20-1,645,219.10

Finding the Fourth Proportional to 1,981,506.80, 2,972,260.20 and 1,645,219.10

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Solution

The fourth proportional to 1,981,506.80, 2,972,260.20 and 1,645,219.10 is: 2,467,828.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,506.80 : 2,972,260.20 = 1,645,219.10 : x
  2. Step 2: Convert to fraction form
    1,981,506.80/2,972,260.20 = 1,645,219.10/x
  3. Step 3: Cross multiply
    1,981,506.80x = 2,972,260.20 × 1,645,219.10
  4. Step 4: Simplify right side
    1,981,506.80x = 4,890,019,251,209.82
  5. Step 5: Solve for x
    x = 4,890,019,251,209.82/1,981,506.80
  6. Step 6: Final answer
    x = 2,467,828.65

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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.