Home / 412,747.04-619,120.70-272,472.86

Finding the Fourth Proportional to 412,747.04, 619,120.70 and 272,472.86

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Solution

The fourth proportional to 412,747.04, 619,120.70 and 272,472.86 is: 408,709.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,747.04 : 619,120.70 = 272,472.86 : x
  2. Step 2: Convert to fraction form
    412,747.04/619,120.70 = 272,472.86/x
  3. Step 3: Cross multiply
    412,747.04x = 619,120.70 × 272,472.86
  4. Step 4: Simplify right side
    412,747.04x = 168,693,586,451.84
  5. Step 5: Solve for x
    x = 168,693,586,451.84/412,747.04
  6. Step 6: Final answer
    x = 408,709.38

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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.