Home / 412,964.10-619,446.15-307,988.10

Finding the Fourth Proportional to 412,964.10, 619,446.15 and 307,988.10

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Solution

The fourth proportional to 412,964.10, 619,446.15 and 307,988.10 is: 461,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,964.10 : 619,446.15 = 307,988.10 : x
  2. Step 2: Convert to fraction form
    412,964.10/619,446.15 = 307,988.10/x
  3. Step 3: Cross multiply
    412,964.10x = 619,446.15 × 307,988.10
  4. Step 4: Simplify right side
    412,964.10x = 190,782,042,790.82
  5. Step 5: Solve for x
    x = 190,782,042,790.82/412,964.10
  6. Step 6: Final answer
    x = 461,982.15

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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.