Home / 820,073.52-1,230,102.96-259,108.08

Finding the Fourth Proportional to 820,073.52, 1,230,102.96 and 259,108.08

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Solution

The fourth proportional to 820,073.52, 1,230,102.96 and 259,108.08 is: 388,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,073.52 : 1,230,102.96 = 259,108.08 : x
  2. Step 2: Convert to fraction form
    820,073.52/1,230,102.96 = 259,108.08/x
  3. Step 3: Cross multiply
    820,073.52x = 1,230,102.96 × 259,108.08
  4. Step 4: Simplify right side
    820,073.52x = 318,729,616,167.92
  5. Step 5: Solve for x
    x = 318,729,616,167.92/820,073.52
  6. Step 6: Final answer
    x = 388,659.81

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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.