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Finding the Fourth Proportional to 378,064.60, 567,096.90 and 343,072.60

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Solution

The fourth proportional to 378,064.60, 567,096.90 and 343,072.60 is: 514,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,064.60 : 567,096.90 = 343,072.60 : x
  2. Step 2: Convert to fraction form
    378,064.60/567,096.90 = 343,072.60/x
  3. Step 3: Cross multiply
    378,064.60x = 567,096.90 × 343,072.60
  4. Step 4: Simplify right side
    378,064.60x = 194,555,407,934.94
  5. Step 5: Solve for x
    x = 194,555,407,934.94/378,064.60
  6. Step 6: Final answer
    x = 514,608.90

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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.