Home / 2,786,918.46-4,180,384.23-765,190.05

Finding the Fourth Proportional to 2,786,918.46, 4,180,384.23 and 765,190.05

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Solution

The fourth proportional to 2,786,918.46, 4,180,384.23 and 765,190.05 is: 1,147,786.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786,918.46 : 4,180,384.23 = 765,190.05 : x
  2. Step 2: Convert to fraction form
    2,786,918.46/4,180,384.23 = 765,190.05/x
  3. Step 3: Cross multiply
    2,786,918.46x = 4,180,384.23 × 765,190.05
  4. Step 4: Simplify right side
    2,786,918.46x = 3,198,788,417,972.91
  5. Step 5: Solve for x
    x = 3,198,788,417,972.91/2,786,918.46
  6. Step 6: Final answer
    x = 1,147,786.87

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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.