Home / 871,408.30-1,202,656.22-489,435.07

Finding the Fourth Proportional to 871,408.30, 1,202,656.22 and 489,435.07

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Solution

The fourth proportional to 871,408.30, 1,202,656.22 and 489,435.07 is: 675,483.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,408.30 : 1,202,656.22 = 489,435.07 : x
  2. Step 2: Convert to fraction form
    871,408.30/1,202,656.22 = 489,435.07/x
  3. Step 3: Cross multiply
    871,408.30x = 1,202,656.22 × 489,435.07
  4. Step 4: Simplify right side
    871,408.30x = 588,622,131,221.64
  5. Step 5: Solve for x
    x = 588,622,131,221.64/871,408.30
  6. Step 6: Final answer
    x = 675,483.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.