Home / 1,206,020.40-1,806,406.20-731,878.80

Finding the Fourth Proportional to 1,206,020.40, 1,806,406.20 and 731,878.80

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Solution

The fourth proportional to 1,206,020.40, 1,806,406.20 and 731,878.80 is: 1,096,225.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,020.40 : 1,806,406.20 = 731,878.80 : x
  2. Step 2: Convert to fraction form
    1,206,020.40/1,806,406.20 = 731,878.80/x
  3. Step 3: Cross multiply
    1,206,020.40x = 1,806,406.20 × 731,878.80
  4. Step 4: Simplify right side
    1,206,020.40x = 1,322,070,401,968.56
  5. Step 5: Solve for x
    x = 1,322,070,401,968.56/1,206,020.40
  6. Step 6: Final answer
    x = 1,096,225.57

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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.