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Finding the Third Proportional to 368,506 and 781,297

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Solution

The third proportional to 368,506 and 781,297 is: 1,656,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,506 : 781,297 = 781,297 : x
  2. Step 2: Convert to fraction form
    368,506/781,297 = 781,297/x
  3. Step 3: Cross multiply
    368,506x = 781,297 × 781,297
  4. Step 4: Simplify right side
    368,506x = 610,425,002,209
  5. Step 5: Solve for x
    x = 610,425,002,209/368,506
  6. Step 6: Final answer
    x = 1,656,485.92

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.