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Finding the Third Proportional to 427,155 and 939,576

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Solution

The third proportional to 427,155 and 939,576 is: 2,066,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,155 : 939,576 = 939,576 : x
  2. Step 2: Convert to fraction form
    427,155/939,576 = 939,576/x
  3. Step 3: Cross multiply
    427,155x = 939,576 × 939,576
  4. Step 4: Simplify right side
    427,155x = 882,803,059,776
  5. Step 5: Solve for x
    x = 882,803,059,776/427,155
  6. Step 6: Final answer
    x = 2,066,704.26

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.