Home / 810,003.70-1,215,005.55-798,193.90

Finding the Fourth Proportional to 810,003.70, 1,215,005.55 and 798,193.90

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Solution

The fourth proportional to 810,003.70, 1,215,005.55 and 798,193.90 is: 1,197,290.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,003.70 : 1,215,005.55 = 798,193.90 : x
  2. Step 2: Convert to fraction form
    810,003.70/1,215,005.55 = 798,193.90/x
  3. Step 3: Cross multiply
    810,003.70x = 1,215,005.55 × 798,193.90
  4. Step 4: Simplify right side
    810,003.70x = 969,810,018,476.15
  5. Step 5: Solve for x
    x = 969,810,018,476.15/810,003.70
  6. Step 6: Final answer
    x = 1,197,290.85

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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.