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Finding the Third Proportional to 687,060 and 1,465,440

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Solution

The third proportional to 687,060 and 1,465,440 is: 3,125,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,060 : 1,465,440 = 1,465,440 : x
  2. Step 2: Convert to fraction form
    687,060/1,465,440 = 1,465,440/x
  3. Step 3: Cross multiply
    687,060x = 1,465,440 × 1,465,440
  4. Step 4: Simplify right side
    687,060x = 2,147,514,393,600
  5. Step 5: Solve for x
    x = 2,147,514,393,600/687,060
  6. Step 6: Final answer
    x = 3,125,657.72

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.