Home / 728,874.96-1,093,628.21-391,522.02

Finding the Fourth Proportional to 728,874.96, 1,093,628.21 and 391,522.02

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Solution

The fourth proportional to 728,874.96, 1,093,628.21 and 391,522.02 is: 587,452.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,874.96 : 1,093,628.21 = 391,522.02 : x
  2. Step 2: Convert to fraction form
    728,874.96/1,093,628.21 = 391,522.02/x
  3. Step 3: Cross multiply
    728,874.96x = 1,093,628.21 × 391,522.02
  4. Step 4: Simplify right side
    728,874.96x = 428,179,523,950.57
  5. Step 5: Solve for x
    x = 428,179,523,950.57/728,874.96
  6. Step 6: Final answer
    x = 587,452.65

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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.