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Finding the Third Proportional to 699,890 and 1,085,803

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Solution

The third proportional to 699,890 and 1,085,803 is: 1,684,504.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,890 : 1,085,803 = 1,085,803 : x
  2. Step 2: Convert to fraction form
    699,890/1,085,803 = 1,085,803/x
  3. Step 3: Cross multiply
    699,890x = 1,085,803 × 1,085,803
  4. Step 4: Simplify right side
    699,890x = 1,178,968,154,809
  5. Step 5: Solve for x
    x = 1,178,968,154,809/699,890
  6. Step 6: Final answer
    x = 1,684,504.93

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.