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Finding the Fourth Proportional to 521,945.20, 732,822.80 and 521,945.20

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Solution

The fourth proportional to 521,945.20, 732,822.80 and 521,945.20 is: 732,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,945.20 : 732,822.80 = 521,945.20 : x
  2. Step 2: Convert to fraction form
    521,945.20/732,822.80 = 521,945.20/x
  3. Step 3: Cross multiply
    521,945.20x = 732,822.80 × 521,945.20
  4. Step 4: Simplify right side
    521,945.20x = 382,493,342,910.56
  5. Step 5: Solve for x
    x = 382,493,342,910.56/521,945.20
  6. Step 6: Final answer
    x = 732,822.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.