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Finding the Third Proportional to 403,538 and 565,547

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Solution

The third proportional to 403,538 and 565,547 is: 792,597.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,538 : 565,547 = 565,547 : x
  2. Step 2: Convert to fraction form
    403,538/565,547 = 565,547/x
  3. Step 3: Cross multiply
    403,538x = 565,547 × 565,547
  4. Step 4: Simplify right side
    403,538x = 319,843,409,209
  5. Step 5: Solve for x
    x = 319,843,409,209/403,538
  6. Step 6: Final answer
    x = 792,597.99

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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.