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Finding the Third Proportional to 385,432 and 565,550

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Solution

The third proportional to 385,432 and 565,550 is: 829,839.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,432 : 565,550 = 565,550 : x
  2. Step 2: Convert to fraction form
    385,432/565,550 = 565,550/x
  3. Step 3: Cross multiply
    385,432x = 565,550 × 565,550
  4. Step 4: Simplify right side
    385,432x = 319,846,802,500
  5. Step 5: Solve for x
    x = 319,846,802,500/385,432
  6. Step 6: Final answer
    x = 829,839.77

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.