Home / 1,051,620.89-1,449,536.64-821,778.71

Finding the Fourth Proportional to 1,051,620.89, 1,449,536.64 and 821,778.71

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Solution

The fourth proportional to 1,051,620.89, 1,449,536.64 and 821,778.71 is: 1,132,726.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,620.89 : 1,449,536.64 = 821,778.71 : x
  2. Step 2: Convert to fraction form
    1,051,620.89/1,449,536.64 = 821,778.71/x
  3. Step 3: Cross multiply
    1,051,620.89x = 1,449,536.64 × 821,778.71
  4. Step 4: Simplify right side
    1,051,620.89x = 1,191,198,350,116.93
  5. Step 5: Solve for x
    x = 1,191,198,350,116.93/1,051,620.89
  6. Step 6: Final answer
    x = 1,132,726.02

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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.