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Finding the Fourth Proportional to 523,861.81, 722,932.19 and 306,083.27

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Solution

The fourth proportional to 523,861.81, 722,932.19 and 306,083.27 is: 422,396.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,861.81 : 722,932.19 = 306,083.27 : x
  2. Step 2: Convert to fraction form
    523,861.81/722,932.19 = 306,083.27/x
  3. Step 3: Cross multiply
    523,861.81x = 722,932.19 × 306,083.27
  4. Step 4: Simplify right side
    523,861.81x = 221,277,448,980.38
  5. Step 5: Solve for x
    x = 221,277,448,980.38/523,861.81
  6. Step 6: Final answer
    x = 422,396.61

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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.