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Finding the Fourth Proportional to 455,062.60, 683,906.10 and 397,325.80

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Solution

The fourth proportional to 455,062.60, 683,906.10 and 397,325.80 is: 597,134.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,062.60 : 683,906.10 = 397,325.80 : x
  2. Step 2: Convert to fraction form
    455,062.60/683,906.10 = 397,325.80/x
  3. Step 3: Cross multiply
    455,062.60x = 683,906.10 × 397,325.80
  4. Step 4: Simplify right side
    455,062.60x = 271,733,538,307.38
  5. Step 5: Solve for x
    x = 271,733,538,307.38/455,062.60
  6. Step 6: Final answer
    x = 597,134.41

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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.