Home / 1,122,028.82-1,548,191.31-638,565.20

Finding the Fourth Proportional to 1,122,028.82, 1,548,191.31 and 638,565.20

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Solution

The fourth proportional to 1,122,028.82, 1,548,191.31 and 638,565.20 is: 881,101.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,028.82 : 1,548,191.31 = 638,565.20 : x
  2. Step 2: Convert to fraction form
    1,122,028.82/1,548,191.31 = 638,565.20/x
  3. Step 3: Cross multiply
    1,122,028.82x = 1,548,191.31 × 638,565.20
  4. Step 4: Simplify right side
    1,122,028.82x = 988,621,093,508.41
  5. Step 5: Solve for x
    x = 988,621,093,508.41/1,122,028.82
  6. Step 6: Final answer
    x = 881,101.34

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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.