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Finding the Third Proportional to 266,716 and 578,630

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Solution

The third proportional to 266,716 and 578,630 is: 1,255,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,716 : 578,630 = 578,630 : x
  2. Step 2: Convert to fraction form
    266,716/578,630 = 578,630/x
  3. Step 3: Cross multiply
    266,716x = 578,630 × 578,630
  4. Step 4: Simplify right side
    266,716x = 334,812,676,900
  5. Step 5: Solve for x
    x = 334,812,676,900/266,716
  6. Step 6: Final answer
    x = 1,255,315.31

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.