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Finding the Fourth Proportional to 547,710, 821,668.68 and 252,222

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Solution

The fourth proportional to 547,710, 821,668.68 and 252,222 is: 378,380.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,710 : 821,668.68 = 252,222 : x
  2. Step 2: Convert to fraction form
    547,710/821,668.68 = 252,222/x
  3. Step 3: Cross multiply
    547,710x = 821,668.68 × 252,222
  4. Step 4: Simplify right side
    547,710x = 207,242,917,806.96
  5. Step 5: Solve for x
    x = 207,242,917,806.96/547,710
  6. Step 6: Final answer
    x = 378,380.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.