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Finding the Third Proportional to 718,070 and 1,555,818

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Solution

The third proportional to 718,070 and 1,555,818 is: 3,370,938.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,070 : 1,555,818 = 1,555,818 : x
  2. Step 2: Convert to fraction form
    718,070/1,555,818 = 1,555,818/x
  3. Step 3: Cross multiply
    718,070x = 1,555,818 × 1,555,818
  4. Step 4: Simplify right side
    718,070x = 2,420,569,649,124
  5. Step 5: Solve for x
    x = 2,420,569,649,124/718,070
  6. Step 6: Final answer
    x = 3,370,938.28

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.