Home / 511,538.12-705,913.26-282,116.58

Finding the Fourth Proportional to 511,538.12, 705,913.26 and 282,116.58

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Solution

The fourth proportional to 511,538.12, 705,913.26 and 282,116.58 is: 389,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,538.12 : 705,913.26 = 282,116.58 : x
  2. Step 2: Convert to fraction form
    511,538.12/705,913.26 = 282,116.58/x
  3. Step 3: Cross multiply
    511,538.12x = 705,913.26 × 282,116.58
  4. Step 4: Simplify right side
    511,538.12x = 199,149,834,687.85
  5. Step 5: Solve for x
    x = 199,149,834,687.85/511,538.12
  6. Step 6: Final answer
    x = 389,315.73

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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.