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Finding the Fourth Proportional to 634,238, 875,168.24 and 347,682.68

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Solution

The fourth proportional to 634,238, 875,168.24 and 347,682.68 is: 479,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,238 : 875,168.24 = 347,682.68 : x
  2. Step 2: Convert to fraction form
    634,238/875,168.24 = 347,682.68/x
  3. Step 3: Cross multiply
    634,238x = 875,168.24 × 347,682.68
  4. Step 4: Simplify right side
    634,238x = 304,280,839,134.08
  5. Step 5: Solve for x
    x = 304,280,839,134.08/634,238
  6. Step 6: Final answer
    x = 479,758.13

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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.