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Finding the Third Proportional to 342,928 and 545,688

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Solution

The third proportional to 342,928 and 545,688 is: 868,332.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,928 : 545,688 = 545,688 : x
  2. Step 2: Convert to fraction form
    342,928/545,688 = 545,688/x
  3. Step 3: Cross multiply
    342,928x = 545,688 × 545,688
  4. Step 4: Simplify right side
    342,928x = 297,775,393,344
  5. Step 5: Solve for x
    x = 297,775,393,344/342,928
  6. Step 6: Final answer
    x = 868,332.11

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.