Home / 851,719.80-1,277,579.70-810,247.80

Finding the Fourth Proportional to 851,719.80, 1,277,579.70 and 810,247.80

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Solution

The fourth proportional to 851,719.80, 1,277,579.70 and 810,247.80 is: 1,215,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,719.80 : 1,277,579.70 = 810,247.80 : x
  2. Step 2: Convert to fraction form
    851,719.80/1,277,579.70 = 810,247.80/x
  3. Step 3: Cross multiply
    851,719.80x = 1,277,579.70 × 810,247.80
  4. Step 4: Simplify right side
    851,719.80x = 1,035,156,141,249.66
  5. Step 5: Solve for x
    x = 1,035,156,141,249.66/851,719.80
  6. Step 6: Final answer
    x = 1,215,371.70

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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.