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Finding the Third Proportional to 278,572 and 601,478

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Solution

The third proportional to 278,572 and 601,478 is: 1,298,679.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,572 : 601,478 = 601,478 : x
  2. Step 2: Convert to fraction form
    278,572/601,478 = 601,478/x
  3. Step 3: Cross multiply
    278,572x = 601,478 × 601,478
  4. Step 4: Simplify right side
    278,572x = 361,775,784,484
  5. Step 5: Solve for x
    x = 361,775,784,484/278,572
  6. Step 6: Final answer
    x = 1,298,679.64

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.