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Finding the Third Proportional to 872,403.75 and 1,279,850.63

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Solution

The third proportional to 872,403.75 and 1,279,850.63 is: 1,877,591.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,403.75 : 1,279,850.63 = 1,279,850.63 : x
  2. Step 2: Convert to fraction form
    872,403.75/1,279,850.63 = 1,279,850.63/x
  3. Step 3: Cross multiply
    872,403.75x = 1,279,850.63 × 1,279,850.63
  4. Step 4: Simplify right side
    872,403.75x = 1,638,017,622,312.89
  5. Step 5: Solve for x
    x = 1,638,017,622,312.89/872,403.75
  6. Step 6: Final answer
    x = 1,877,591.22

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.