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Finding the Fourth Proportional to 417,619.92, 576,309.36 and 245,557.32

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Solution

The fourth proportional to 417,619.92, 576,309.36 and 245,557.32 is: 338,865.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,619.92 : 576,309.36 = 245,557.32 : x
  2. Step 2: Convert to fraction form
    417,619.92/576,309.36 = 245,557.32/x
  3. Step 3: Cross multiply
    417,619.92x = 576,309.36 × 245,557.32
  4. Step 4: Simplify right side
    417,619.92x = 141,516,981,932.52
  5. Step 5: Solve for x
    x = 141,516,981,932.52/417,619.92
  6. Step 6: Final answer
    x = 338,865.50

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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.