Home / 1,290,213.92-1,934,716.08-691,064.48

Finding the Fourth Proportional to 1,290,213.92, 1,934,716.08 and 691,064.48

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Solution

The fourth proportional to 1,290,213.92, 1,934,716.08 and 691,064.48 is: 1,036,272.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,213.92 : 1,934,716.08 = 691,064.48 : x
  2. Step 2: Convert to fraction form
    1,290,213.92/1,934,716.08 = 691,064.48/x
  3. Step 3: Cross multiply
    1,290,213.92x = 1,934,716.08 × 691,064.48
  4. Step 4: Simplify right side
    1,290,213.92x = 1,337,013,561,772.84
  5. Step 5: Solve for x
    x = 1,337,013,561,772.84/1,290,213.92
  6. Step 6: Final answer
    x = 1,036,272.78

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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.