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Finding the Fourth Proportional to 439,479.25, 606,464.52 and 248,496.64

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Solution

The fourth proportional to 439,479.25, 606,464.52 and 248,496.64 is: 342,915.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,479.25 : 606,464.52 = 248,496.64 : x
  2. Step 2: Convert to fraction form
    439,479.25/606,464.52 = 248,496.64/x
  3. Step 3: Cross multiply
    439,479.25x = 606,464.52 × 248,496.64
  4. Step 4: Simplify right side
    439,479.25x = 150,704,395,499.21
  5. Step 5: Solve for x
    x = 150,704,395,499.21/439,479.25
  6. Step 6: Final answer
    x = 342,915.84

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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.