Home / 756,689.22-1,134,738.54-330,355.44

Finding the Fourth Proportional to 756,689.22, 1,134,738.54 and 330,355.44

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Solution

The fourth proportional to 756,689.22, 1,134,738.54 and 330,355.44 is: 495,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,689.22 : 1,134,738.54 = 330,355.44 : x
  2. Step 2: Convert to fraction form
    756,689.22/1,134,738.54 = 330,355.44/x
  3. Step 3: Cross multiply
    756,689.22x = 1,134,738.54 × 330,355.44
  4. Step 4: Simplify right side
    756,689.22x = 374,867,049,666.66
  5. Step 5: Solve for x
    x = 374,867,049,666.66/756,689.22
  6. Step 6: Final answer
    x = 495,404.24

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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.