Home / 2,189,628.80-3,284,420.40-693,720.80

Finding the Fourth Proportional to 2,189,628.80, 3,284,420.40 and 693,720.80

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Solution

The fourth proportional to 2,189,628.80, 3,284,420.40 and 693,720.80 is: 1,040,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,628.80 : 3,284,420.40 = 693,720.80 : x
  2. Step 2: Convert to fraction form
    2,189,628.80/3,284,420.40 = 693,720.80/x
  3. Step 3: Cross multiply
    2,189,628.80x = 3,284,420.40 × 693,720.80
  4. Step 4: Simplify right side
    2,189,628.80x = 2,278,470,747,424.32
  5. Step 5: Solve for x
    x = 2,278,470,747,424.32/2,189,628.80
  6. Step 6: Final answer
    x = 1,040,573.98

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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.