Home / 691,889.43-1,037,756.99-186,500.78

Finding the Fourth Proportional to 691,889.43, 1,037,756.99 and 186,500.78

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Solution

The fourth proportional to 691,889.43, 1,037,756.99 and 186,500.78 is: 279,730.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,889.43 : 1,037,756.99 = 186,500.78 : x
  2. Step 2: Convert to fraction form
    691,889.43/1,037,756.99 = 186,500.78/x
  3. Step 3: Cross multiply
    691,889.43x = 1,037,756.99 × 186,500.78
  4. Step 4: Simplify right side
    691,889.43x = 193,542,481,964.16
  5. Step 5: Solve for x
    x = 193,542,481,964.16/691,889.43
  6. Step 6: Final answer
    x = 279,730.36

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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.