Home / 1,987,934.40-2,974,903.20-1,819,972.80

Finding the Fourth Proportional to 1,987,934.40, 2,974,903.20 and 1,819,972.80

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Solution

The fourth proportional to 1,987,934.40, 2,974,903.20 and 1,819,972.80 is: 2,723,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,934.40 : 2,974,903.20 = 1,819,972.80 : x
  2. Step 2: Convert to fraction form
    1,987,934.40/2,974,903.20 = 1,819,972.80/x
  3. Step 3: Cross multiply
    1,987,934.40x = 2,974,903.20 × 1,819,972.80
  4. Step 4: Simplify right side
    1,987,934.40x = 5,414,242,906,632.96
  5. Step 5: Solve for x
    x = 5,414,242,906,632.96/1,987,934.40
  6. Step 6: Final answer
    x = 2,723,552.10

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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.