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Finding the Fourth Proportional to 547,522.53, 820,138.64 and 440,327.64

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Solution

The fourth proportional to 547,522.53, 820,138.64 and 440,327.64 is: 659,570.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,522.53 : 820,138.64 = 440,327.64 : x
  2. Step 2: Convert to fraction form
    547,522.53/820,138.64 = 440,327.64/x
  3. Step 3: Cross multiply
    547,522.53x = 820,138.64 × 440,327.64
  4. Step 4: Simplify right side
    547,522.53x = 361,129,709,622.37
  5. Step 5: Solve for x
    x = 361,129,709,622.37/547,522.53
  6. Step 6: Final answer
    x = 659,570.50

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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.