Home / 810,512.83-1,215,630.89-270,694.41

Finding the Fourth Proportional to 810,512.83, 1,215,630.89 and 270,694.41

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Solution

The fourth proportional to 810,512.83, 1,215,630.89 and 270,694.41 is: 405,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,512.83 : 1,215,630.89 = 270,694.41 : x
  2. Step 2: Convert to fraction form
    810,512.83/1,215,630.89 = 270,694.41/x
  3. Step 3: Cross multiply
    810,512.83x = 1,215,630.89 × 270,694.41
  4. Step 4: Simplify right side
    810,512.83x = 329,064,481,649.34
  5. Step 5: Solve for x
    x = 329,064,481,649.34/810,512.83
  6. Step 6: Final answer
    x = 405,995.40

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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.