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Finding the Third Proportional to 528,220 and 1,138,576

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Solution

The third proportional to 528,220 and 1,138,576 is: 2,454,195.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,220 : 1,138,576 = 1,138,576 : x
  2. Step 2: Convert to fraction form
    528,220/1,138,576 = 1,138,576/x
  3. Step 3: Cross multiply
    528,220x = 1,138,576 × 1,138,576
  4. Step 4: Simplify right side
    528,220x = 1,296,355,307,776
  5. Step 5: Solve for x
    x = 1,296,355,307,776/528,220
  6. Step 6: Final answer
    x = 2,454,195.80

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.