Home / 728,868.21-1,093,618.08-391,515.27

Finding the Fourth Proportional to 728,868.21, 1,093,618.08 and 391,515.27

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Solution

The fourth proportional to 728,868.21, 1,093,618.08 and 391,515.27 is: 587,442.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,868.21 : 1,093,618.08 = 391,515.27 : x
  2. Step 2: Convert to fraction form
    728,868.21/1,093,618.08 = 391,515.27/x
  3. Step 3: Cross multiply
    728,868.21x = 1,093,618.08 × 391,515.27
  4. Step 4: Simplify right side
    728,868.21x = 428,168,177,868.08
  5. Step 5: Solve for x
    x = 428,168,177,868.08/728,868.21
  6. Step 6: Final answer
    x = 587,442.52

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1.5x scale

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.