Home / 889,905.33-1,334,843.85-215,992.20

Finding the Fourth Proportional to 889,905.33, 1,334,843.85 and 215,992.20

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Solution

The fourth proportional to 889,905.33, 1,334,843.85 and 215,992.20 is: 323,984.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,905.33 : 1,334,843.85 = 215,992.20 : x
  2. Step 2: Convert to fraction form
    889,905.33/1,334,843.85 = 215,992.20/x
  3. Step 3: Cross multiply
    889,905.33x = 1,334,843.85 × 215,992.20
  4. Step 4: Simplify right side
    889,905.33x = 288,315,859,817.97
  5. Step 5: Solve for x
    x = 288,315,859,817.97/889,905.33
  6. Step 6: Final answer
    x = 323,984.87

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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.