Home / 792,123.30-1,188,476.55-259,661.70

Finding the Fourth Proportional to 792,123.30, 1,188,476.55 and 259,661.70

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Solution

The fourth proportional to 792,123.30, 1,188,476.55 and 259,661.70 is: 389,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,123.30 : 1,188,476.55 = 259,661.70 : x
  2. Step 2: Convert to fraction form
    792,123.30/1,188,476.55 = 259,661.70/x
  3. Step 3: Cross multiply
    792,123.30x = 1,188,476.55 × 259,661.70
  4. Step 4: Simplify right side
    792,123.30x = 308,601,841,383.14
  5. Step 5: Solve for x
    x = 308,601,841,383.14/792,123.30
  6. Step 6: Final answer
    x = 389,588.14

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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.