Home / 1,264,087.72-1,744,457.60-691,128.55

Finding the Fourth Proportional to 1,264,087.72, 1,744,457.60 and 691,128.55

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Solution

The fourth proportional to 1,264,087.72, 1,744,457.60 and 691,128.55 is: 953,766.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,087.72 : 1,744,457.60 = 691,128.55 : x
  2. Step 2: Convert to fraction form
    1,264,087.72/1,744,457.60 = 691,128.55/x
  3. Step 3: Cross multiply
    1,264,087.72x = 1,744,457.60 × 691,128.55
  4. Step 4: Simplify right side
    1,264,087.72x = 1,205,644,439,446.55
  5. Step 5: Solve for x
    x = 1,205,644,439,446.55/1,264,087.72
  6. Step 6: Final answer
    x = 953,766.44

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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.