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Finding the Third Proportional to 398,176.50 and 859,695

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Solution

The third proportional to 398,176.50 and 859,695 is: 1,856,150.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,176.50 : 859,695 = 859,695 : x
  2. Step 2: Convert to fraction form
    398,176.50/859,695 = 859,695/x
  3. Step 3: Cross multiply
    398,176.50x = 859,695 × 859,695
  4. Step 4: Simplify right side
    398,176.50x = 739,075,493,025
  5. Step 5: Solve for x
    x = 739,075,493,025/398,176.50
  6. Step 6: Final answer
    x = 1,856,150.46

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.