Home / 1,138,835.43-1,571,531.22-629,505

Finding the Fourth Proportional to 1,138,835.43, 1,571,531.22 and 629,505

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Solution

The fourth proportional to 1,138,835.43, 1,571,531.22 and 629,505 is: 868,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,835.43 : 1,571,531.22 = 629,505 : x
  2. Step 2: Convert to fraction form
    1,138,835.43/1,571,531.22 = 629,505/x
  3. Step 3: Cross multiply
    1,138,835.43x = 1,571,531.22 × 629,505
  4. Step 4: Simplify right side
    1,138,835.43x = 989,286,760,646.10
  5. Step 5: Solve for x
    x = 989,286,760,646.10/1,138,835.43
  6. Step 6: Final answer
    x = 868,682.81

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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.