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Finding the Fourth Proportional to 439,479.40, 606,494.36 and 248,488.68

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Solution

The fourth proportional to 439,479.40, 606,494.36 and 248,488.68 is: 342,921.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,479.40 : 606,494.36 = 248,488.68 : x
  2. Step 2: Convert to fraction form
    439,479.40/606,494.36 = 248,488.68/x
  3. Step 3: Cross multiply
    439,479.40x = 606,494.36 × 248,488.68
  4. Step 4: Simplify right side
    439,479.40x = 150,706,982,943.85
  5. Step 5: Solve for x
    x = 150,706,982,943.85/439,479.40
  6. Step 6: Final answer
    x = 342,921.61

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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.