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Finding the Fourth Proportional to 1,904,795.52, 2,857,629.64 and 825,489.28

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Solution

The fourth proportional to 1,904,795.52, 2,857,629.64 and 825,489.28 is: 1,238,423.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,904,795.52 : 2,857,629.64 = 825,489.28 : x
  2. Step 2: Convert to fraction form
    1,904,795.52/2,857,629.64 = 825,489.28/x
  3. Step 3: Cross multiply
    1,904,795.52x = 2,857,629.64 × 825,489.28
  4. Step 4: Simplify right side
    1,904,795.52x = 2,358,942,634,764.68
  5. Step 5: Solve for x
    x = 2,358,942,634,764.68/1,904,795.52
  6. Step 6: Final answer
    x = 1,238,423.02

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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.