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Finding the Fourth Proportional to 443,697.57, 612,428.07 and 262,472.53

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Solution

The fourth proportional to 443,697.57, 612,428.07 and 262,472.53 is: 362,286.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,697.57 : 612,428.07 = 262,472.53 : x
  2. Step 2: Convert to fraction form
    443,697.57/612,428.07 = 262,472.53/x
  3. Step 3: Cross multiply
    443,697.57x = 612,428.07 × 262,472.53
  4. Step 4: Simplify right side
    443,697.57x = 160,745,544,975.92
  5. Step 5: Solve for x
    x = 160,745,544,975.92/443,697.57
  6. Step 6: Final answer
    x = 362,286.29

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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.