Home / 412,689.12-619,033.88-272,414.96

Finding the Fourth Proportional to 412,689.12, 619,033.88 and 272,414.96

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Solution

The fourth proportional to 412,689.12, 619,033.88 and 272,414.96 is: 408,622.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,689.12 : 619,033.88 = 272,414.96 : x
  2. Step 2: Convert to fraction form
    412,689.12/619,033.88 = 272,414.96/x
  3. Step 3: Cross multiply
    412,689.12x = 619,033.88 × 272,414.96
  4. Step 4: Simplify right side
    412,689.12x = 168,634,089,658.85
  5. Step 5: Solve for x
    x = 168,634,089,658.85/412,689.12
  6. Step 6: Final answer
    x = 408,622.57

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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.