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Finding the Fourth Proportional to 469,249.58, 647,569.52 and 275,665.45

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Solution

The fourth proportional to 469,249.58, 647,569.52 and 275,665.45 is: 380,421.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,249.58 : 647,569.52 = 275,665.45 : x
  2. Step 2: Convert to fraction form
    469,249.58/647,569.52 = 275,665.45/x
  3. Step 3: Cross multiply
    469,249.58x = 647,569.52 × 275,665.45
  4. Step 4: Simplify right side
    469,249.58x = 178,512,540,829.00
  5. Step 5: Solve for x
    x = 178,512,540,829.00/469,249.58
  6. Step 6: Final answer
    x = 380,421.31

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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.