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Finding the Fourth Proportional to 455,950.35, 629,288.02 and 308,708.42

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Solution

The fourth proportional to 455,950.35, 629,288.02 and 308,708.42 is: 426,069.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,950.35 : 629,288.02 = 308,708.42 : x
  2. Step 2: Convert to fraction form
    455,950.35/629,288.02 = 308,708.42/x
  3. Step 3: Cross multiply
    455,950.35x = 629,288.02 × 308,708.42
  4. Step 4: Simplify right side
    455,950.35x = 194,266,505,689.15
  5. Step 5: Solve for x
    x = 194,266,505,689.15/455,950.35
  6. Step 6: Final answer
    x = 426,069.43

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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.