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Finding the Fourth Proportional to 376,668.53, 564,412.19 and 320,276.73

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Solution

The fourth proportional to 376,668.53, 564,412.19 and 320,276.73 is: 479,912.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,668.53 : 564,412.19 = 320,276.73 : x
  2. Step 2: Convert to fraction form
    376,668.53/564,412.19 = 320,276.73/x
  3. Step 3: Cross multiply
    376,668.53x = 564,412.19 × 320,276.73
  4. Step 4: Simplify right side
    376,668.53x = 180,768,090,585.34
  5. Step 5: Solve for x
    x = 180,768,090,585.34/376,668.53
  6. Step 6: Final answer
    x = 479,912.92

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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.