Home / 1,309,380.30-1,806,736.62-736,309.80

Finding the Fourth Proportional to 1,309,380.30, 1,806,736.62 and 736,309.80

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Solution

The fourth proportional to 1,309,380.30, 1,806,736.62 and 736,309.80 is: 1,015,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,380.30 : 1,806,736.62 = 736,309.80 : x
  2. Step 2: Convert to fraction form
    1,309,380.30/1,806,736.62 = 736,309.80/x
  3. Step 3: Cross multiply
    1,309,380.30x = 1,806,736.62 × 736,309.80
  4. Step 4: Simplify right side
    1,309,380.30x = 1,330,317,879,324.88
  5. Step 5: Solve for x
    x = 1,330,317,879,324.88/1,309,380.30
  6. Step 6: Final answer
    x = 1,015,990.45

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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.