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Finding the Fourth Proportional to 547,302.40, 820,516.20 and 231,499.60

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Solution

The fourth proportional to 547,302.40, 820,516.20 and 231,499.60 is: 347,064.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,302.40 : 820,516.20 = 231,499.60 : x
  2. Step 2: Convert to fraction form
    547,302.40/820,516.20 = 231,499.60/x
  3. Step 3: Cross multiply
    547,302.40x = 820,516.20 × 231,499.60
  4. Step 4: Simplify right side
    547,302.40x = 189,949,172,093.52
  5. Step 5: Solve for x
    x = 189,949,172,093.52/547,302.40
  6. Step 6: Final answer
    x = 347,064.39

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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.