Home / 639,895.24-959,893.86-219,174.76

Finding the Fourth Proportional to 639,895.24, 959,893.86 and 219,174.76

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Solution

The fourth proportional to 639,895.24, 959,893.86 and 219,174.76 is: 328,779.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,895.24 : 959,893.86 = 219,174.76 : x
  2. Step 2: Convert to fraction form
    639,895.24/959,893.86 = 219,174.76/x
  3. Step 3: Cross multiply
    639,895.24x = 959,893.86 × 219,174.76
  4. Step 4: Simplify right side
    639,895.24x = 210,384,506,390.97
  5. Step 5: Solve for x
    x = 210,384,506,390.97/639,895.24
  6. Step 6: Final answer
    x = 328,779.61

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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.