Home / 1,138,625.51-1,571,403.24-629,426.30

Finding the Fourth Proportional to 1,138,625.51, 1,571,403.24 and 629,426.30

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Solution

The fourth proportional to 1,138,625.51, 1,571,403.24 and 629,426.30 is: 868,663.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,625.51 : 1,571,403.24 = 629,426.30 : x
  2. Step 2: Convert to fraction form
    1,138,625.51/1,571,403.24 = 629,426.30/x
  3. Step 3: Cross multiply
    1,138,625.51x = 1,571,403.24 × 629,426.30
  4. Step 4: Simplify right side
    1,138,625.51x = 989,082,519,304.20
  5. Step 5: Solve for x
    x = 989,082,519,304.20/1,138,625.51
  6. Step 6: Final answer
    x = 868,663.59

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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.