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Finding the Fourth Proportional to 571,819.73, 789,105.53 and 317,164.37

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Solution

The fourth proportional to 571,819.73, 789,105.53 and 317,164.37 is: 437,683.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,819.73 : 789,105.53 = 317,164.37 : x
  2. Step 2: Convert to fraction form
    571,819.73/789,105.53 = 317,164.37/x
  3. Step 3: Cross multiply
    571,819.73x = 789,105.53 × 317,164.37
  4. Step 4: Simplify right side
    571,819.73x = 250,276,156,700.14
  5. Step 5: Solve for x
    x = 250,276,156,700.14/571,819.73
  6. Step 6: Final answer
    x = 437,683.67

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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.