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Finding the Fourth Proportional to 447,404.52, 617,812.02 and 304,505.94

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Solution

The fourth proportional to 447,404.52, 617,812.02 and 304,505.94 is: 420,486.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,404.52 : 617,812.02 = 304,505.94 : x
  2. Step 2: Convert to fraction form
    447,404.52/617,812.02 = 304,505.94/x
  3. Step 3: Cross multiply
    447,404.52x = 617,812.02 × 304,505.94
  4. Step 4: Simplify right side
    447,404.52x = 188,127,429,893.40
  5. Step 5: Solve for x
    x = 188,127,429,893.40/447,404.52
  6. Step 6: Final answer
    x = 420,486.21

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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.