Home / 1,206,010.40-1,806,391.20-731,868.80

Finding the Fourth Proportional to 1,206,010.40, 1,806,391.20 and 731,868.80

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Solution

The fourth proportional to 1,206,010.40, 1,806,391.20 and 731,868.80 is: 1,096,210.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,010.40 : 1,806,391.20 = 731,868.80 : x
  2. Step 2: Convert to fraction form
    1,206,010.40/1,806,391.20 = 731,868.80/x
  3. Step 3: Cross multiply
    1,206,010.40x = 1,806,391.20 × 731,868.80
  4. Step 4: Simplify right side
    1,206,010.40x = 1,322,041,359,874.56
  5. Step 5: Solve for x
    x = 1,322,041,359,874.56/1,206,010.40
  6. Step 6: Final answer
    x = 1,096,210.58

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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.