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Finding the Fourth Proportional to 422,599.68, 633,899.52 and 256,037.76

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Solution

The fourth proportional to 422,599.68, 633,899.52 and 256,037.76 is: 384,056.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,599.68 : 633,899.52 = 256,037.76 : x
  2. Step 2: Convert to fraction form
    422,599.68/633,899.52 = 256,037.76/x
  3. Step 3: Cross multiply
    422,599.68x = 633,899.52 × 256,037.76
  4. Step 4: Simplify right side
    422,599.68x = 162,302,213,165.88
  5. Step 5: Solve for x
    x = 162,302,213,165.88/422,599.68
  6. Step 6: Final answer
    x = 384,056.64

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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.