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Finding the Fourth Proportional to 636,540.57, 878,408.46 and 350,060.63

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Solution

The fourth proportional to 636,540.57, 878,408.46 and 350,060.63 is: 483,074.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,540.57 : 878,408.46 = 350,060.63 : x
  2. Step 2: Convert to fraction form
    636,540.57/878,408.46 = 350,060.63/x
  3. Step 3: Cross multiply
    636,540.57x = 878,408.46 × 350,060.63
  4. Step 4: Simplify right side
    636,540.57x = 307,496,214,512.89
  5. Step 5: Solve for x
    x = 307,496,214,512.89/636,540.57
  6. Step 6: Final answer
    x = 483,074.02

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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.