Home / 511,939.13-767,310.75-385,172.10

Finding the Fourth Proportional to 511,939.13, 767,310.75 and 385,172.10

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Solution

The fourth proportional to 511,939.13, 767,310.75 and 385,172.10 is: 577,308.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,939.13 : 767,310.75 = 385,172.10 : x
  2. Step 2: Convert to fraction form
    511,939.13/767,310.75 = 385,172.10/x
  3. Step 3: Cross multiply
    511,939.13x = 767,310.75 × 385,172.10
  4. Step 4: Simplify right side
    511,939.13x = 295,546,692,930.08
  5. Step 5: Solve for x
    x = 295,546,692,930.08/511,939.13
  6. Step 6: Final answer
    x = 577,308.27

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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.