Home / 455,905.24-629,236.12-300,583.80

Finding the Fourth Proportional to 455,905.24, 629,236.12 and 300,583.80

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Solution

The fourth proportional to 455,905.24, 629,236.12 and 300,583.80 is: 414,862.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,905.24 : 629,236.12 = 300,583.80 : x
  2. Step 2: Convert to fraction form
    455,905.24/629,236.12 = 300,583.80/x
  3. Step 3: Cross multiply
    455,905.24x = 629,236.12 × 300,583.80
  4. Step 4: Simplify right side
    455,905.24x = 189,138,184,046.86
  5. Step 5: Solve for x
    x = 189,138,184,046.86/455,905.24
  6. Step 6: Final answer
    x = 414,862.93

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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.