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Finding the Fourth Proportional to 492,795.09, 680,057.51 and 266,440.41

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Solution

The fourth proportional to 492,795.09, 680,057.51 and 266,440.41 is: 367,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,795.09 : 680,057.51 = 266,440.41 : x
  2. Step 2: Convert to fraction form
    492,795.09/680,057.51 = 266,440.41/x
  3. Step 3: Cross multiply
    492,795.09x = 680,057.51 × 266,440.41
  4. Step 4: Simplify right side
    492,795.09x = 181,194,800,455.78
  5. Step 5: Solve for x
    x = 181,194,800,455.78/492,795.09
  6. Step 6: Final answer
    x = 367,687.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.