Home / 871,517.08-1,307,276.65-272,481.38

Finding the Fourth Proportional to 871,517.08, 1,307,276.65 and 272,481.38

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Solution

The fourth proportional to 871,517.08, 1,307,276.65 and 272,481.38 is: 408,722.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,517.08 : 1,307,276.65 = 272,481.38 : x
  2. Step 2: Convert to fraction form
    871,517.08/1,307,276.65 = 272,481.38/x
  3. Step 3: Cross multiply
    871,517.08x = 1,307,276.65 × 272,481.38
  4. Step 4: Simplify right side
    871,517.08x = 356,208,545,633.78
  5. Step 5: Solve for x
    x = 356,208,545,633.78/871,517.08
  6. Step 6: Final answer
    x = 408,722.39

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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.