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Finding the Fourth Proportional to 547,520.28, 820,135.26 and 440,325.39

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Solution

The fourth proportional to 547,520.28, 820,135.26 and 440,325.39 is: 659,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,520.28 : 820,135.26 = 440,325.39 : x
  2. Step 2: Convert to fraction form
    547,520.28/820,135.26 = 440,325.39/x
  3. Step 3: Cross multiply
    547,520.28x = 820,135.26 × 440,325.39
  4. Step 4: Simplify right side
    547,520.28x = 361,126,378,212.25
  5. Step 5: Solve for x
    x = 361,126,378,212.25/547,520.28
  6. Step 6: Final answer
    x = 659,567.13

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1.5x scale

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.