Home / 1,388,660.10-2,086,100.55-1,331,981.70

Finding the Fourth Proportional to 1,388,660.10, 2,086,100.55 and 1,331,981.70

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Solution

The fourth proportional to 1,388,660.10, 2,086,100.55 and 1,331,981.70 is: 2,000,956.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,660.10 : 2,086,100.55 = 1,331,981.70 : x
  2. Step 2: Convert to fraction form
    1,388,660.10/2,086,100.55 = 1,331,981.70/x
  3. Step 3: Cross multiply
    1,388,660.10x = 2,086,100.55 × 1,331,981.70
  4. Step 4: Simplify right side
    1,388,660.10x = 2,778,647,756,959.94
  5. Step 5: Solve for x
    x = 2,778,647,756,959.94/1,388,660.10
  6. Step 6: Final answer
    x = 2,000,956.00

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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.