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Finding the Third Proportional to 555,648 and 860,928

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Solution

The third proportional to 555,648 and 860,928 is: 1,333,932.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,648 : 860,928 = 860,928 : x
  2. Step 2: Convert to fraction form
    555,648/860,928 = 860,928/x
  3. Step 3: Cross multiply
    555,648x = 860,928 × 860,928
  4. Step 4: Simplify right side
    555,648x = 741,197,021,184
  5. Step 5: Solve for x
    x = 741,197,021,184/555,648
  6. Step 6: Final answer
    x = 1,333,932.67

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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.