Home / 1,104,115.15-1,660,601.40-988,969.60

Finding the Fourth Proportional to 1,104,115.15, 1,660,601.40 and 988,969.60

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Solution

The fourth proportional to 1,104,115.15, 1,660,601.40 and 988,969.60 is: 1,487,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,104,115.15 : 1,660,601.40 = 988,969.60 : x
  2. Step 2: Convert to fraction form
    1,104,115.15/1,660,601.40 = 988,969.60/x
  3. Step 3: Cross multiply
    1,104,115.15x = 1,660,601.40 × 988,969.60
  4. Step 4: Simplify right side
    1,104,115.15x = 1,642,284,302,317.44
  5. Step 5: Solve for x
    x = 1,642,284,302,317.44/1,104,115.15
  6. Step 6: Final answer
    x = 1,487,421.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.