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Finding the Fourth Proportional to 439,240.52, 606,216.94 and 278,110.52

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Solution

The fourth proportional to 439,240.52, 606,216.94 and 278,110.52 is: 383,833.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,240.52 : 606,216.94 = 278,110.52 : x
  2. Step 2: Convert to fraction form
    439,240.52/606,216.94 = 278,110.52/x
  3. Step 3: Cross multiply
    439,240.52x = 606,216.94 × 278,110.52
  4. Step 4: Simplify right side
    439,240.52x = 168,595,308,416.21
  5. Step 5: Solve for x
    x = 168,595,308,416.21/439,240.52
  6. Step 6: Final answer
    x = 383,833.69

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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.