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Finding the Fourth Proportional to 547,509.80, 820,908.30 and 491,522.60

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Solution

The fourth proportional to 547,509.80, 820,908.30 and 491,522.60 is: 736,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,509.80 : 820,908.30 = 491,522.60 : x
  2. Step 2: Convert to fraction form
    547,509.80/820,908.30 = 491,522.60/x
  3. Step 3: Cross multiply
    547,509.80x = 820,908.30 × 491,522.60
  4. Step 4: Simplify right side
    547,509.80x = 403,494,981,977.58
  5. Step 5: Solve for x
    x = 403,494,981,977.58/547,509.80
  6. Step 6: Final answer
    x = 736,963.94

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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.