Home / 711,315.64-1,067,261.80-311,745.88

Finding the Fourth Proportional to 711,315.64, 1,067,261.80 and 311,745.88

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Solution

The fourth proportional to 711,315.64, 1,067,261.80 and 311,745.88 is: 467,745.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,315.64 : 1,067,261.80 = 311,745.88 : x
  2. Step 2: Convert to fraction form
    711,315.64/1,067,261.80 = 311,745.88/x
  3. Step 3: Cross multiply
    711,315.64x = 1,067,261.80 × 311,745.88
  4. Step 4: Simplify right side
    711,315.64x = 332,714,469,031.38
  5. Step 5: Solve for x
    x = 332,714,469,031.38/711,315.64
  6. Step 6: Final answer
    x = 467,745.19

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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.