Home / 1,217,418.15-1,826,108.78-418,706.62

Finding the Fourth Proportional to 1,217,418.15, 1,826,108.78 and 418,706.62

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Solution

The fourth proportional to 1,217,418.15, 1,826,108.78 and 418,706.62 is: 628,053.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,418.15 : 1,826,108.78 = 418,706.62 : x
  2. Step 2: Convert to fraction form
    1,217,418.15/1,826,108.78 = 418,706.62/x
  3. Step 3: Cross multiply
    1,217,418.15x = 1,826,108.78 × 418,706.62
  4. Step 4: Simplify right side
    1,217,418.15x = 764,603,829,544.93
  5. Step 5: Solve for x
    x = 764,603,829,544.93/1,217,418.15
  6. Step 6: Final answer
    x = 628,053.58

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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.