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Finding the Fourth Proportional to 659,175.69, 987,633.48 and 442,628.52

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Solution

The fourth proportional to 659,175.69, 987,633.48 and 442,628.52 is: 663,183.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,175.69 : 987,633.48 = 442,628.52 : x
  2. Step 2: Convert to fraction form
    659,175.69/987,633.48 = 442,628.52/x
  3. Step 3: Cross multiply
    659,175.69x = 987,633.48 × 442,628.52
  4. Step 4: Simplify right side
    659,175.69x = 437,154,745,554.85
  5. Step 5: Solve for x
    x = 437,154,745,554.85/659,175.69
  6. Step 6: Final answer
    x = 663,183.96

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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.