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Finding the Fourth Proportional to 447,099.72, 616,685.31 and 303,610.65

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Solution

The fourth proportional to 447,099.72, 616,685.31 and 303,610.65 is: 418,770.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,099.72 : 616,685.31 = 303,610.65 : x
  2. Step 2: Convert to fraction form
    447,099.72/616,685.31 = 303,610.65/x
  3. Step 3: Cross multiply
    447,099.72x = 616,685.31 × 303,610.65
  4. Step 4: Simplify right side
    447,099.72x = 187,232,227,814.55
  5. Step 5: Solve for x
    x = 187,232,227,814.55/447,099.72
  6. Step 6: Final answer
    x = 418,770.62

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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.