Home / 511,709.67-706,160.03-282,261.78

Finding the Fourth Proportional to 511,709.67, 706,160.03 and 282,261.78

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Solution

The fourth proportional to 511,709.67, 706,160.03 and 282,261.78 is: 389,521.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,709.67 : 706,160.03 = 282,261.78 : x
  2. Step 2: Convert to fraction form
    511,709.67/706,160.03 = 282,261.78/x
  3. Step 3: Cross multiply
    511,709.67x = 706,160.03 × 282,261.78
  4. Step 4: Simplify right side
    511,709.67x = 199,321,985,621.35
  5. Step 5: Solve for x
    x = 199,321,985,621.35/511,709.67
  6. Step 6: Final answer
    x = 389,521.63

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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.