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Finding the Fourth Proportional to 998,704.52, 1,378,212 and 545,995.52

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Solution

The fourth proportional to 998,704.52, 1,378,212 and 545,995.52 is: 753,473.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,704.52 : 1,378,212 = 545,995.52 : x
  2. Step 2: Convert to fraction form
    998,704.52/1,378,212 = 545,995.52/x
  3. Step 3: Cross multiply
    998,704.52x = 1,378,212 × 545,995.52
  4. Step 4: Simplify right side
    998,704.52x = 752,497,577,610.24
  5. Step 5: Solve for x
    x = 752,497,577,610.24/998,704.52
  6. Step 6: Final answer
    x = 753,473.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.