Home / 729,422.10-1,093,355.55-279,969.30

Finding the Fourth Proportional to 729,422.10, 1,093,355.55 and 279,969.30

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Solution

The fourth proportional to 729,422.10, 1,093,355.55 and 279,969.30 is: 419,655.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,422.10 : 1,093,355.55 = 279,969.30 : x
  2. Step 2: Convert to fraction form
    729,422.10/1,093,355.55 = 279,969.30/x
  3. Step 3: Cross multiply
    729,422.10x = 1,093,355.55 × 279,969.30
  4. Step 4: Simplify right side
    729,422.10x = 306,105,987,984.62
  5. Step 5: Solve for x
    x = 306,105,987,984.62/729,422.10
  6. Step 6: Final answer
    x = 419,655.49

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Double scale
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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.