Home / 865,481.37-1,298,262.15-266,469.36

Finding the Fourth Proportional to 865,481.37, 1,298,262.15 and 266,469.36

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Solution

The fourth proportional to 865,481.37, 1,298,262.15 and 266,469.36 is: 399,716.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,481.37 : 1,298,262.15 = 266,469.36 : x
  2. Step 2: Convert to fraction form
    865,481.37/1,298,262.15 = 266,469.36/x
  3. Step 3: Cross multiply
    865,481.37x = 1,298,262.15 × 266,469.36
  4. Step 4: Simplify right side
    865,481.37x = 345,947,084,222.72
  5. Step 5: Solve for x
    x = 345,947,084,222.72/865,481.37
  6. Step 6: Final answer
    x = 399,716.38

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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.