Home / 412,769.98-618,280.17-311,818.06

Finding the Fourth Proportional to 412,769.98, 618,280.17 and 311,818.06

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Solution

The fourth proportional to 412,769.98, 618,280.17 and 311,818.06 is: 467,066.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,769.98 : 618,280.17 = 311,818.06 : x
  2. Step 2: Convert to fraction form
    412,769.98/618,280.17 = 311,818.06/x
  3. Step 3: Cross multiply
    412,769.98x = 618,280.17 × 311,818.06
  4. Step 4: Simplify right side
    412,769.98x = 192,790,923,145.87
  5. Step 5: Solve for x
    x = 192,790,923,145.87/412,769.98
  6. Step 6: Final answer
    x = 467,066.24

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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.