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Finding the Fourth Proportional to 576,827.30, 796,037.73 and 318,720.88

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Solution

The fourth proportional to 576,827.30, 796,037.73 and 318,720.88 is: 439,843.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,827.30 : 796,037.73 = 318,720.88 : x
  2. Step 2: Convert to fraction form
    576,827.30/796,037.73 = 318,720.88/x
  3. Step 3: Cross multiply
    576,827.30x = 796,037.73 × 318,720.88
  4. Step 4: Simplify right side
    576,827.30x = 253,713,846,813.85
  5. Step 5: Solve for x
    x = 253,713,846,813.85/576,827.30
  6. Step 6: Final answer
    x = 439,843.69

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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.