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Finding the Third Proportional to 740,818 and 1,121,555

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Solution

The third proportional to 740,818 and 1,121,555 is: 1,697,968.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,818 : 1,121,555 = 1,121,555 : x
  2. Step 2: Convert to fraction form
    740,818/1,121,555 = 1,121,555/x
  3. Step 3: Cross multiply
    740,818x = 1,121,555 × 1,121,555
  4. Step 4: Simplify right side
    740,818x = 1,257,885,618,025
  5. Step 5: Solve for x
    x = 1,257,885,618,025/740,818
  6. Step 6: Final answer
    x = 1,697,968.49

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.