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Finding the Fourth Proportional to 652,166.30, 978,249.45 and 449,212.70

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Solution

The fourth proportional to 652,166.30, 978,249.45 and 449,212.70 is: 673,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,166.30 : 978,249.45 = 449,212.70 : x
  2. Step 2: Convert to fraction form
    652,166.30/978,249.45 = 449,212.70/x
  3. Step 3: Cross multiply
    652,166.30x = 978,249.45 × 449,212.70
  4. Step 4: Simplify right side
    652,166.30x = 439,442,076,708.02
  5. Step 5: Solve for x
    x = 439,442,076,708.02/652,166.30
  6. Step 6: Final answer
    x = 673,819.05

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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.