Home / 672,872.76-1,009,137.06-199,447.20

Finding the Fourth Proportional to 672,872.76, 1,009,137.06 and 199,447.20

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Solution

The fourth proportional to 672,872.76, 1,009,137.06 and 199,447.20 is: 299,119.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,872.76 : 1,009,137.06 = 199,447.20 : x
  2. Step 2: Convert to fraction form
    672,872.76/1,009,137.06 = 199,447.20/x
  3. Step 3: Cross multiply
    672,872.76x = 1,009,137.06 × 199,447.20
  4. Step 4: Simplify right side
    672,872.76x = 201,269,561,033.23
  5. Step 5: Solve for x
    x = 201,269,561,033.23/672,872.76
  6. Step 6: Final answer
    x = 299,119.79

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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.