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Finding the Fourth Proportional to 505,518.53, 756,047.05 and 449,750.03

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Solution

The fourth proportional to 505,518.53, 756,047.05 and 449,750.03 is: 672,640.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,518.53 : 756,047.05 = 449,750.03 : x
  2. Step 2: Convert to fraction form
    505,518.53/756,047.05 = 449,750.03/x
  3. Step 3: Cross multiply
    505,518.53x = 756,047.05 × 449,750.03
  4. Step 4: Simplify right side
    505,518.53x = 340,032,178,514.30
  5. Step 5: Solve for x
    x = 340,032,178,514.30/505,518.53
  6. Step 6: Final answer
    x = 672,640.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.