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Finding the Third Proportional to 291,376 and 623,270

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Solution

The third proportional to 291,376 and 623,270 is: 1,333,210.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,376 : 623,270 = 623,270 : x
  2. Step 2: Convert to fraction form
    291,376/623,270 = 623,270/x
  3. Step 3: Cross multiply
    291,376x = 623,270 × 623,270
  4. Step 4: Simplify right side
    291,376x = 388,465,492,900
  5. Step 5: Solve for x
    x = 388,465,492,900/291,376
  6. Step 6: Final answer
    x = 1,333,210.33

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.