Home / 729,387.77-1,093,333.41-279,987.62

Finding the Fourth Proportional to 729,387.77, 1,093,333.41 and 279,987.62

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Solution

The fourth proportional to 729,387.77, 1,093,333.41 and 279,987.62 is: 419,694.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,387.77 : 1,093,333.41 = 279,987.62 : x
  2. Step 2: Convert to fraction form
    729,387.77/1,093,333.41 = 279,987.62/x
  3. Step 3: Cross multiply
    729,387.77x = 1,093,333.41 × 279,987.62
  4. Step 4: Simplify right side
    729,387.77x = 306,119,813,865.72
  5. Step 5: Solve for x
    x = 306,119,813,865.72/729,387.77
  6. Step 6: Final answer
    x = 419,694.20

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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.