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Finding the Fourth Proportional to 547,778.70, 821,668.06 and 547,778.70

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Solution

The fourth proportional to 547,778.70, 821,668.06 and 547,778.70 is: 821,668.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,778.70 : 821,668.06 = 547,778.70 : x
  2. Step 2: Convert to fraction form
    547,778.70/821,668.06 = 547,778.70/x
  3. Step 3: Cross multiply
    547,778.70x = 821,668.06 × 547,778.70
  4. Step 4: Simplify right side
    547,778.70x = 450,092,261,738.32
  5. Step 5: Solve for x
    x = 450,092,261,738.32/547,778.70
  6. Step 6: Final answer
    x = 821,668.06

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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.