Home / 1,111,446.20-1,664,711.70-669,078.20

Finding the Fourth Proportional to 1,111,446.20, 1,664,711.70 and 669,078.20

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Solution

The fourth proportional to 1,111,446.20, 1,664,711.70 and 669,078.20 is: 1,002,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,446.20 : 1,664,711.70 = 669,078.20 : x
  2. Step 2: Convert to fraction form
    1,111,446.20/1,664,711.70 = 669,078.20/x
  3. Step 3: Cross multiply
    1,111,446.20x = 1,664,711.70 × 669,078.20
  4. Step 4: Simplify right side
    1,111,446.20x = 1,113,822,307,754.94
  5. Step 5: Solve for x
    x = 1,113,822,307,754.94/1,111,446.20
  6. Step 6: Final answer
    x = 1,002,137.85

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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.