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Finding the Third Proportional to 403,540 and 565,549

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Solution

The third proportional to 403,540 and 565,549 is: 792,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,540 : 565,549 = 565,549 : x
  2. Step 2: Convert to fraction form
    403,540/565,549 = 565,549/x
  3. Step 3: Cross multiply
    403,540x = 565,549 × 565,549
  4. Step 4: Simplify right side
    403,540x = 319,845,671,401
  5. Step 5: Solve for x
    x = 319,845,671,401/403,540
  6. Step 6: Final answer
    x = 792,599.67

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.