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Finding the Fourth Proportional to 485,372.88, 728,059.32 and 484,671.96

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Solution

The fourth proportional to 485,372.88, 728,059.32 and 484,671.96 is: 727,007.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,372.88 : 728,059.32 = 484,671.96 : x
  2. Step 2: Convert to fraction form
    485,372.88/728,059.32 = 484,671.96/x
  3. Step 3: Cross multiply
    485,372.88x = 728,059.32 × 484,671.96
  4. Step 4: Simplify right side
    485,372.88x = 352,869,937,620.67
  5. Step 5: Solve for x
    x = 352,869,937,620.67/485,372.88
  6. Step 6: Final answer
    x = 727,007.94

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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.