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Finding the Fourth Proportional to 634,134.87, 875,105.91 and 347,648.81

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Solution

The fourth proportional to 634,134.87, 875,105.91 and 347,648.81 is: 479,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,134.87 : 875,105.91 = 347,648.81 : x
  2. Step 2: Convert to fraction form
    634,134.87/875,105.91 = 347,648.81/x
  3. Step 3: Cross multiply
    634,134.87x = 875,105.91 × 347,648.81
  4. Step 4: Simplify right side
    634,134.87x = 304,229,523,859.94
  5. Step 5: Solve for x
    x = 304,229,523,859.94/634,134.87
  6. Step 6: Final answer
    x = 479,755.24

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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.