Home / 1,309,381.30-1,806,738-736,310.80

Finding the Fourth Proportional to 1,309,381.30, 1,806,738 and 736,310.80

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Solution

The fourth proportional to 1,309,381.30, 1,806,738 and 736,310.80 is: 1,015,991.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,381.30 : 1,806,738 = 736,310.80 : x
  2. Step 2: Convert to fraction form
    1,309,381.30/1,806,738 = 736,310.80/x
  3. Step 3: Cross multiply
    1,309,381.30x = 1,806,738 × 736,310.80
  4. Step 4: Simplify right side
    1,309,381.30x = 1,330,320,702,170.40
  5. Step 5: Solve for x
    x = 1,330,320,702,170.40/1,309,381.30
  6. Step 6: Final answer
    x = 1,015,991.83

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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.