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Finding the Fourth Proportional to 634,532.70, 875,353.32 and 379,834.68

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Solution

The fourth proportional to 634,532.70, 875,353.32 and 379,834.68 is: 523,991.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,532.70 : 875,353.32 = 379,834.68 : x
  2. Step 2: Convert to fraction form
    634,532.70/875,353.32 = 379,834.68/x
  3. Step 3: Cross multiply
    634,532.70x = 875,353.32 × 379,834.68
  4. Step 4: Simplify right side
    634,532.70x = 332,489,548,189.14
  5. Step 5: Solve for x
    x = 332,489,548,189.14/634,532.70
  6. Step 6: Final answer
    x = 523,991.20

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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.