Home / 687,174.88-948,299.52-385,375.36

Finding the Fourth Proportional to 687,174.88, 948,299.52 and 385,375.36

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Solution

The fourth proportional to 687,174.88, 948,299.52 and 385,375.36 is: 531,816.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,174.88 : 948,299.52 = 385,375.36 : x
  2. Step 2: Convert to fraction form
    687,174.88/948,299.52 = 385,375.36/x
  3. Step 3: Cross multiply
    687,174.88x = 948,299.52 × 385,375.36
  4. Step 4: Simplify right side
    687,174.88x = 365,451,268,907.83
  5. Step 5: Solve for x
    x = 365,451,268,907.83/687,174.88
  6. Step 6: Final answer
    x = 531,816.98

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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.