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Finding the Fourth Proportional to 521,704.10, 782,556.15 and 521,704.10

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Solution

The fourth proportional to 521,704.10, 782,556.15 and 521,704.10 is: 782,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,704.10 : 782,556.15 = 521,704.10 : x
  2. Step 2: Convert to fraction form
    521,704.10/782,556.15 = 521,704.10/x
  3. Step 3: Cross multiply
    521,704.10x = 782,556.15 × 521,704.10
  4. Step 4: Simplify right side
    521,704.10x = 408,262,751,935.22
  5. Step 5: Solve for x
    x = 408,262,751,935.22/521,704.10
  6. Step 6: Final answer
    x = 782,556.15

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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.