Home / 790,974.92-1,091,546.52-428,399.48

Finding the Fourth Proportional to 790,974.92, 1,091,546.52 and 428,399.48

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Solution

The fourth proportional to 790,974.92, 1,091,546.52 and 428,399.48 is: 591,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,974.92 : 1,091,546.52 = 428,399.48 : x
  2. Step 2: Convert to fraction form
    790,974.92/1,091,546.52 = 428,399.48/x
  3. Step 3: Cross multiply
    790,974.92x = 1,091,546.52 × 428,399.48
  4. Step 4: Simplify right side
    790,974.92x = 467,617,961,563.81
  5. Step 5: Solve for x
    x = 467,617,961,563.81/790,974.92
  6. Step 6: Final answer
    x = 591,191.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.