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Finding the Third Proportional to 358,960 and 555,748

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Solution

The third proportional to 358,960 and 555,748 is: 860,418.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,960 : 555,748 = 555,748 : x
  2. Step 2: Convert to fraction form
    358,960/555,748 = 555,748/x
  3. Step 3: Cross multiply
    358,960x = 555,748 × 555,748
  4. Step 4: Simplify right side
    358,960x = 308,855,839,504
  5. Step 5: Solve for x
    x = 308,855,839,504/358,960
  6. Step 6: Final answer
    x = 860,418.54

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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.