Home / 729,412.73-1,094,260.79-280,100.57

Finding the Fourth Proportional to 729,412.73, 1,094,260.79 and 280,100.57

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Solution

The fourth proportional to 729,412.73, 1,094,260.79 and 280,100.57 is: 420,205.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,412.73 : 1,094,260.79 = 280,100.57 : x
  2. Step 2: Convert to fraction form
    729,412.73/1,094,260.79 = 280,100.57/x
  3. Step 3: Cross multiply
    729,412.73x = 1,094,260.79 × 280,100.57
  4. Step 4: Simplify right side
    729,412.73x = 306,503,064,135.84
  5. Step 5: Solve for x
    x = 306,503,064,135.84/729,412.73
  6. Step 6: Final answer
    x = 420,205.26

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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.