Home / 728,875.90-1,093,629.62-391,522.95

Finding the Fourth Proportional to 728,875.90, 1,093,629.62 and 391,522.95

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Solution

The fourth proportional to 728,875.90, 1,093,629.62 and 391,522.95 is: 587,454.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,875.90 : 1,093,629.62 = 391,522.95 : x
  2. Step 2: Convert to fraction form
    728,875.90/1,093,629.62 = 391,522.95/x
  3. Step 3: Cross multiply
    728,875.90x = 1,093,629.62 × 391,522.95
  4. Step 4: Simplify right side
    728,875.90x = 428,181,093,072.16
  5. Step 5: Solve for x
    x = 428,181,093,072.16/728,875.90
  6. Step 6: Final answer
    x = 587,454.04

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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.