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Finding the Third Proportional to 708,957 and 1,089,715

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Solution

The third proportional to 708,957 and 1,089,715 is: 1,674,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,957 : 1,089,715 = 1,089,715 : x
  2. Step 2: Convert to fraction form
    708,957/1,089,715 = 1,089,715/x
  3. Step 3: Cross multiply
    708,957x = 1,089,715 × 1,089,715
  4. Step 4: Simplify right side
    708,957x = 1,187,478,781,225
  5. Step 5: Solve for x
    x = 1,187,478,781,225/708,957
  6. Step 6: Final answer
    x = 1,674,965.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.