Home / 816,781.44-1,225,173.24-217,711.92

Finding the Fourth Proportional to 816,781.44, 1,225,173.24 and 217,711.92

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Solution

The fourth proportional to 816,781.44, 1,225,173.24 and 217,711.92 is: 326,568.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,781.44 : 1,225,173.24 = 217,711.92 : x
  2. Step 2: Convert to fraction form
    816,781.44/1,225,173.24 = 217,711.92/x
  3. Step 3: Cross multiply
    816,781.44x = 1,225,173.24 × 217,711.92
  4. Step 4: Simplify right side
    816,781.44x = 266,734,818,413.02
  5. Step 5: Solve for x
    x = 266,734,818,413.02/816,781.44
  6. Step 6: Final answer
    x = 326,568.17

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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.