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Finding the Fourth Proportional to 580,827.71, 871,110.05 and 220,869.79

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Solution

The fourth proportional to 580,827.71, 871,110.05 and 220,869.79 is: 331,254.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,827.71 : 871,110.05 = 220,869.79 : x
  2. Step 2: Convert to fraction form
    580,827.71/871,110.05 = 220,869.79/x
  3. Step 3: Cross multiply
    580,827.71x = 871,110.05 × 220,869.79
  4. Step 4: Simplify right side
    580,827.71x = 192,401,890,528.27
  5. Step 5: Solve for x
    x = 192,401,890,528.27/580,827.71
  6. Step 6: Final answer
    x = 331,254.67

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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.