Home / 511,942.55-767,315.79-385,175.43

Finding the Fourth Proportional to 511,942.55, 767,315.79 and 385,175.43

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Solution

The fourth proportional to 511,942.55, 767,315.79 and 385,175.43 is: 577,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,942.55 : 767,315.79 = 385,175.43 : x
  2. Step 2: Convert to fraction form
    511,942.55/767,315.79 = 385,175.43/x
  3. Step 3: Cross multiply
    511,942.55x = 767,315.79 × 385,175.43
  4. Step 4: Simplify right side
    511,942.55x = 295,551,189,359.04
  5. Step 5: Solve for x
    x = 295,551,189,359.04/511,942.55
  6. Step 6: Final answer
    x = 577,313.20

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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.