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Finding the Fourth Proportional to 439,469.04, 606,479.22 and 248,511

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Solution

The fourth proportional to 439,469.04, 606,479.22 and 248,511 is: 342,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,469.04 : 606,479.22 = 248,511 : x
  2. Step 2: Convert to fraction form
    439,469.04/606,479.22 = 248,511/x
  3. Step 3: Cross multiply
    439,469.04x = 606,479.22 × 248,511
  4. Step 4: Simplify right side
    439,469.04x = 150,716,757,441.42
  5. Step 5: Solve for x
    x = 150,716,757,441.42/439,469.04
  6. Step 6: Final answer
    x = 342,951.93

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1.5x scale

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.