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Finding the Fourth Proportional to 871,706.96, 1,307,771.24 and 303,005.96

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Solution

The fourth proportional to 871,706.96, 1,307,771.24 and 303,005.96 is: 454,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,706.96 : 1,307,771.24 = 303,005.96 : x
  2. Step 2: Convert to fraction form
    871,706.96/1,307,771.24 = 303,005.96/x
  3. Step 3: Cross multiply
    871,706.96x = 1,307,771.24 × 303,005.96
  4. Step 4: Simplify right side
    871,706.96x = 396,262,471,982.70
  5. Step 5: Solve for x
    x = 396,262,471,982.70/871,706.96
  6. Step 6: Final answer
    x = 454,582.21

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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.