Home / 2,147,689.28-3,220,853.22-727,413.21

Finding the Fourth Proportional to 2,147,689.28, 3,220,853.22 and 727,413.21

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Solution

The fourth proportional to 2,147,689.28, 3,220,853.22 and 727,413.21 is: 1,090,889.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147,689.28 : 3,220,853.22 = 727,413.21 : x
  2. Step 2: Convert to fraction form
    2,147,689.28/3,220,853.22 = 727,413.21/x
  3. Step 3: Cross multiply
    2,147,689.28x = 3,220,853.22 × 727,413.21
  4. Step 4: Simplify right side
    2,147,689.28x = 2,342,891,179,699.04
  5. Step 5: Solve for x
    x = 2,342,891,179,699.04/2,147,689.28
  6. Step 6: Final answer
    x = 1,090,889.26

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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.