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Finding the Third Proportional to 358,959 and 555,747.75

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Solution

The third proportional to 358,959 and 555,747.75 is: 860,420.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,959 : 555,747.75 = 555,747.75 : x
  2. Step 2: Convert to fraction form
    358,959/555,747.75 = 555,747.75/x
  3. Step 3: Cross multiply
    358,959x = 555,747.75 × 555,747.75
  4. Step 4: Simplify right side
    358,959x = 308,855,561,630.06
  5. Step 5: Solve for x
    x = 308,855,561,630.06/358,959
  6. Step 6: Final answer
    x = 860,420.16

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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.