Home / 1,138,965.55-1,571,704.97-629,637.55

Finding the Fourth Proportional to 1,138,965.55, 1,571,704.97 and 629,637.55

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Solution

The fourth proportional to 1,138,965.55, 1,571,704.97 and 629,637.55 is: 868,862.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,965.55 : 1,571,704.97 = 629,637.55 : x
  2. Step 2: Convert to fraction form
    1,138,965.55/1,571,704.97 = 629,637.55/x
  3. Step 3: Cross multiply
    1,138,965.55x = 1,571,704.97 × 629,637.55
  4. Step 4: Simplify right side
    1,138,965.55x = 989,604,459,556.17
  5. Step 5: Solve for x
    x = 989,604,459,556.17/1,138,965.55
  6. Step 6: Final answer
    x = 868,862.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.