Home / 1,297,839.44-1,790,999.56-724,887.76

Finding the Fourth Proportional to 1,297,839.44, 1,790,999.56 and 724,887.76

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Solution

The fourth proportional to 1,297,839.44, 1,790,999.56 and 724,887.76 is: 1,000,334.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,839.44 : 1,790,999.56 = 724,887.76 : x
  2. Step 2: Convert to fraction form
    1,297,839.44/1,790,999.56 = 724,887.76/x
  3. Step 3: Cross multiply
    1,297,839.44x = 1,790,999.56 × 724,887.76
  4. Step 4: Simplify right side
    1,297,839.44x = 1,298,273,659,209.39
  5. Step 5: Solve for x
    x = 1,298,273,659,209.39/1,297,839.44
  6. Step 6: Final answer
    x = 1,000,334.57

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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.