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Finding the Third Proportional to 395,280 and 576,072

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Solution

The third proportional to 395,280 and 576,072 is: 839,554.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,280 : 576,072 = 576,072 : x
  2. Step 2: Convert to fraction form
    395,280/576,072 = 576,072/x
  3. Step 3: Cross multiply
    395,280x = 576,072 × 576,072
  4. Step 4: Simplify right side
    395,280x = 331,858,949,184
  5. Step 5: Solve for x
    x = 331,858,949,184/395,280
  6. Step 6: Final answer
    x = 839,554.11

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.