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Finding the Fourth Proportional to 485,408.35, 669,866.63 and 270,562.04

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Solution

The fourth proportional to 485,408.35, 669,866.63 and 270,562.04 is: 373,377.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,408.35 : 669,866.63 = 270,562.04 : x
  2. Step 2: Convert to fraction form
    485,408.35/669,866.63 = 270,562.04/x
  3. Step 3: Cross multiply
    485,408.35x = 669,866.63 × 270,562.04
  4. Step 4: Simplify right side
    485,408.35x = 181,240,481,940.73
  5. Step 5: Solve for x
    x = 181,240,481,940.73/485,408.35
  6. Step 6: Final answer
    x = 373,377.35

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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.