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Finding the Fourth Proportional to 488,450.90, 732,676.35 and 274,999.70

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Solution

The fourth proportional to 488,450.90, 732,676.35 and 274,999.70 is: 412,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,450.90 : 732,676.35 = 274,999.70 : x
  2. Step 2: Convert to fraction form
    488,450.90/732,676.35 = 274,999.70/x
  3. Step 3: Cross multiply
    488,450.90x = 732,676.35 × 274,999.70
  4. Step 4: Simplify right side
    488,450.90x = 201,485,776,447.10
  5. Step 5: Solve for x
    x = 201,485,776,447.10/488,450.90
  6. Step 6: Final answer
    x = 412,499.55

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Similar ratio
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1.5x scale

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.