Home / 1,223,138.70-1,834,708.05-1,108,977.30

Finding the Fourth Proportional to 1,223,138.70, 1,834,708.05 and 1,108,977.30

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Solution

The fourth proportional to 1,223,138.70, 1,834,708.05 and 1,108,977.30 is: 1,663,465.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,138.70 : 1,834,708.05 = 1,108,977.30 : x
  2. Step 2: Convert to fraction form
    1,223,138.70/1,834,708.05 = 1,108,977.30/x
  3. Step 3: Cross multiply
    1,223,138.70x = 1,834,708.05 × 1,108,977.30
  4. Step 4: Simplify right side
    1,223,138.70x = 2,034,649,579,577.27
  5. Step 5: Solve for x
    x = 2,034,649,579,577.27/1,223,138.70
  6. Step 6: Final answer
    x = 1,663,465.95

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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.