Home / 1,359,136.40-2,040,259.80-798,486.80

Finding the Fourth Proportional to 1,359,136.40, 2,040,259.80 and 798,486.80

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Solution

The fourth proportional to 1,359,136.40, 2,040,259.80 and 798,486.80 is: 1,198,643.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,136.40 : 2,040,259.80 = 798,486.80 : x
  2. Step 2: Convert to fraction form
    1,359,136.40/2,040,259.80 = 798,486.80/x
  3. Step 3: Cross multiply
    1,359,136.40x = 2,040,259.80 × 798,486.80
  4. Step 4: Simplify right side
    1,359,136.40x = 1,629,120,518,870.64
  5. Step 5: Solve for x
    x = 1,629,120,518,870.64/1,359,136.40
  6. Step 6: Final answer
    x = 1,198,643.87

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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.