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Finding the Third Proportional to 417,460 and 913,688

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Solution

The third proportional to 417,460 and 913,688 is: 1,999,774.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,460 : 913,688 = 913,688 : x
  2. Step 2: Convert to fraction form
    417,460/913,688 = 913,688/x
  3. Step 3: Cross multiply
    417,460x = 913,688 × 913,688
  4. Step 4: Simplify right side
    417,460x = 834,825,761,344
  5. Step 5: Solve for x
    x = 834,825,761,344/417,460
  6. Step 6: Final answer
    x = 1,999,774.26

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.