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Finding the Fourth Proportional to 417,550.80, 576,369.52 and 247,784.88

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Solution

The fourth proportional to 417,550.80, 576,369.52 and 247,784.88 is: 342,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,550.80 : 576,369.52 = 247,784.88 : x
  2. Step 2: Convert to fraction form
    417,550.80/576,369.52 = 247,784.88/x
  3. Step 3: Cross multiply
    417,550.80x = 576,369.52 × 247,784.88
  4. Step 4: Simplify right side
    417,550.80x = 142,815,652,348.86
  5. Step 5: Solve for x
    x = 142,815,652,348.86/417,550.80
  6. Step 6: Final answer
    x = 342,031.80

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1.5x scale

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.