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Finding the Third Proportional to 355,569 and 777,558

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Solution

The third proportional to 355,569 and 777,558 is: 1,700,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,569 : 777,558 = 777,558 : x
  2. Step 2: Convert to fraction form
    355,569/777,558 = 777,558/x
  3. Step 3: Cross multiply
    355,569x = 777,558 × 777,558
  4. Step 4: Simplify right side
    355,569x = 604,596,443,364
  5. Step 5: Solve for x
    x = 604,596,443,364/355,569
  6. Step 6: Final answer
    x = 1,700,363.20

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.