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Finding the Third Proportional to 528,125 and 1,140,439

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Solution

The third proportional to 528,125 and 1,140,439 is: 2,462,676.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,125 : 1,140,439 = 1,140,439 : x
  2. Step 2: Convert to fraction form
    528,125/1,140,439 = 1,140,439/x
  3. Step 3: Cross multiply
    528,125x = 1,140,439 × 1,140,439
  4. Step 4: Simplify right side
    528,125x = 1,300,601,112,721
  5. Step 5: Solve for x
    x = 1,300,601,112,721/528,125
  6. Step 6: Final answer
    x = 2,462,676.66

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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.