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Finding the Fourth Proportional to 494,131.54, 681,638.58 and 300,598.46

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Solution

The fourth proportional to 494,131.54, 681,638.58 and 300,598.46 is: 414,665.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,131.54 : 681,638.58 = 300,598.46 : x
  2. Step 2: Convert to fraction form
    494,131.54/681,638.58 = 300,598.46/x
  3. Step 3: Cross multiply
    494,131.54x = 681,638.58 × 300,598.46
  4. Step 4: Simplify right side
    494,131.54x = 204,899,507,424.59
  5. Step 5: Solve for x
    x = 204,899,507,424.59/494,131.54
  6. Step 6: Final answer
    x = 414,665.92

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1.5x scale

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.