Home / 820,614.15-1,230,798.11-259,575.75

Finding the Fourth Proportional to 820,614.15, 1,230,798.11 and 259,575.75

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Solution

The fourth proportional to 820,614.15, 1,230,798.11 and 259,575.75 is: 389,324.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,614.15 : 1,230,798.11 = 259,575.75 : x
  2. Step 2: Convert to fraction form
    820,614.15/1,230,798.11 = 259,575.75/x
  3. Step 3: Cross multiply
    820,614.15x = 1,230,798.11 × 259,575.75
  4. Step 4: Simplify right side
    820,614.15x = 319,485,341,203.95
  5. Step 5: Solve for x
    x = 319,485,341,203.95/820,614.15
  6. Step 6: Final answer
    x = 389,324.68

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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.