Home / 1,022,822.25-1,412,100.18-909,331.53

Finding the Fourth Proportional to 1,022,822.25, 1,412,100.18 and 909,331.53

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Solution

The fourth proportional to 1,022,822.25, 1,412,100.18 and 909,331.53 is: 1,255,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022,822.25 : 1,412,100.18 = 909,331.53 : x
  2. Step 2: Convert to fraction form
    1,022,822.25/1,412,100.18 = 909,331.53/x
  3. Step 3: Cross multiply
    1,022,822.25x = 1,412,100.18 × 909,331.53
  4. Step 4: Simplify right side
    1,022,822.25x = 1,284,067,217,192.68
  5. Step 5: Solve for x
    x = 1,284,067,217,192.68/1,022,822.25
  6. Step 6: Final answer
    x = 1,255,415.80

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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.