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Finding the Fourth Proportional to 443,795.92, 665,861.65 and 266,426.57

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Solution

The fourth proportional to 443,795.92, 665,861.65 and 266,426.57 is: 399,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,795.92 : 665,861.65 = 266,426.57 : x
  2. Step 2: Convert to fraction form
    443,795.92/665,861.65 = 266,426.57/x
  3. Step 3: Cross multiply
    443,795.92x = 665,861.65 × 266,426.57
  4. Step 4: Simplify right side
    443,795.92x = 177,403,236,502.63
  5. Step 5: Solve for x
    x = 177,403,236,502.63/443,795.92
  6. Step 6: Final answer
    x = 399,740.58

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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.