Home / 649,620.72-974,715.94-308,310.66

Finding the Fourth Proportional to 649,620.72, 974,715.94 and 308,310.66

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Solution

The fourth proportional to 649,620.72, 974,715.94 and 308,310.66 is: 462,601.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,620.72 : 974,715.94 = 308,310.66 : x
  2. Step 2: Convert to fraction form
    649,620.72/974,715.94 = 308,310.66/x
  3. Step 3: Cross multiply
    649,620.72x = 974,715.94 × 308,310.66
  4. Step 4: Simplify right side
    649,620.72x = 300,515,314,773.92
  5. Step 5: Solve for x
    x = 300,515,314,773.92/649,620.72
  6. Step 6: Final answer
    x = 462,601.18

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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.