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Finding the Third Proportional to 355,689 and 542,565

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Solution

The third proportional to 355,689 and 542,565 is: 827,624.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,689 : 542,565 = 542,565 : x
  2. Step 2: Convert to fraction form
    355,689/542,565 = 542,565/x
  3. Step 3: Cross multiply
    355,689x = 542,565 × 542,565
  4. Step 4: Simplify right side
    355,689x = 294,376,779,225
  5. Step 5: Solve for x
    x = 294,376,779,225/355,689
  6. Step 6: Final answer
    x = 827,624.07

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.