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Finding the Third Proportional to 358,806 and 555,573

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Solution

The third proportional to 358,806 and 555,573 is: 860,245.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,806 : 555,573 = 555,573 : x
  2. Step 2: Convert to fraction form
    358,806/555,573 = 555,573/x
  3. Step 3: Cross multiply
    358,806x = 555,573 × 555,573
  4. Step 4: Simplify right side
    358,806x = 308,661,358,329
  5. Step 5: Solve for x
    x = 308,661,358,329/358,806
  6. Step 6: Final answer
    x = 860,245.81

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.