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Finding the Fourth Proportional to 455,957.57, 629,308.22 and 300,635.61

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Solution

The fourth proportional to 455,957.57, 629,308.22 and 300,635.61 is: 414,934.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,957.57 : 629,308.22 = 300,635.61 : x
  2. Step 2: Convert to fraction form
    455,957.57/629,308.22 = 300,635.61/x
  3. Step 3: Cross multiply
    455,957.57x = 629,308.22 × 300,635.61
  4. Step 4: Simplify right side
    455,957.57x = 189,192,459,094.54
  5. Step 5: Solve for x
    x = 189,192,459,094.54/455,957.57
  6. Step 6: Final answer
    x = 414,934.36

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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.