Home / 687,375.88-1,031,114.39-181,933.45

Finding the Fourth Proportional to 687,375.88, 1,031,114.39 and 181,933.45

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Solution

The fourth proportional to 687,375.88, 1,031,114.39 and 181,933.45 is: 272,913.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,375.88 : 1,031,114.39 = 181,933.45 : x
  2. Step 2: Convert to fraction form
    687,375.88/1,031,114.39 = 181,933.45/x
  3. Step 3: Cross multiply
    687,375.88x = 1,031,114.39 × 181,933.45
  4. Step 4: Simplify right side
    687,375.88x = 187,594,198,317.35
  5. Step 5: Solve for x
    x = 187,594,198,317.35/687,375.88
  6. Step 6: Final answer
    x = 272,913.56

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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.