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Finding the Third Proportional to 487,392 and 727,044

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Solution

The third proportional to 487,392 and 727,044 is: 1,084,533.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,392 : 727,044 = 727,044 : x
  2. Step 2: Convert to fraction form
    487,392/727,044 = 727,044/x
  3. Step 3: Cross multiply
    487,392x = 727,044 × 727,044
  4. Step 4: Simplify right side
    487,392x = 528,592,977,936
  5. Step 5: Solve for x
    x = 528,592,977,936/487,392
  6. Step 6: Final answer
    x = 1,084,533.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.