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Finding the Fourth Proportional to 653,012.51, 979,896.92 and 273,899.48

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Solution

The fourth proportional to 653,012.51, 979,896.92 and 273,899.48 is: 411,007.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,012.51 : 979,896.92 = 273,899.48 : x
  2. Step 2: Convert to fraction form
    653,012.51/979,896.92 = 273,899.48/x
  3. Step 3: Cross multiply
    653,012.51x = 979,896.92 × 273,899.48
  4. Step 4: Simplify right side
    653,012.51x = 268,393,250,572.62
  5. Step 5: Solve for x
    x = 268,393,250,572.62/653,012.51
  6. Step 6: Final answer
    x = 411,007.83

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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.