Home / 1,128,561.98-1,691,846.49-863,505.78

Finding the Fourth Proportional to 1,128,561.98, 1,691,846.49 and 863,505.78

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Solution

The fourth proportional to 1,128,561.98, 1,691,846.49 and 863,505.78 is: 1,294,496.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,561.98 : 1,691,846.49 = 863,505.78 : x
  2. Step 2: Convert to fraction form
    1,128,561.98/1,691,846.49 = 863,505.78/x
  3. Step 3: Cross multiply
    1,128,561.98x = 1,691,846.49 × 863,505.78
  4. Step 4: Simplify right side
    1,128,561.98x = 1,460,919,229,398.07
  5. Step 5: Solve for x
    x = 1,460,919,229,398.07/1,128,561.98
  6. Step 6: Final answer
    x = 1,294,496.23

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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.