Home / 871,413.80-1,202,535.62-531,882.05

Finding the Fourth Proportional to 871,413.80, 1,202,535.62 and 531,882.05

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Solution

The fourth proportional to 871,413.80, 1,202,535.62 and 531,882.05 is: 733,987.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,413.80 : 1,202,535.62 = 531,882.05 : x
  2. Step 2: Convert to fraction form
    871,413.80/1,202,535.62 = 531,882.05/x
  3. Step 3: Cross multiply
    871,413.80x = 1,202,535.62 × 531,882.05
  4. Step 4: Simplify right side
    871,413.80x = 639,607,104,086.09
  5. Step 5: Solve for x
    x = 639,607,104,086.09/871,413.80
  6. Step 6: Final answer
    x = 733,987.81

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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.