Home / 511,982.29-768,316.26-212,463.19

Finding the Fourth Proportional to 511,982.29, 768,316.26 and 212,463.19

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Solution

The fourth proportional to 511,982.29, 768,316.26 and 212,463.19 is: 318,837.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,982.29 : 768,316.26 = 212,463.19 : x
  2. Step 2: Convert to fraction form
    511,982.29/768,316.26 = 212,463.19/x
  3. Step 3: Cross multiply
    511,982.29x = 768,316.26 × 212,463.19
  4. Step 4: Simplify right side
    511,982.29x = 163,238,923,528.47
  5. Step 5: Solve for x
    x = 163,238,923,528.47/511,982.29
  6. Step 6: Final answer
    x = 318,837.05

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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.