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Finding the Fourth Proportional to 455,555.08, 628,638.24 and 274,325.68

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Solution

The fourth proportional to 455,555.08, 628,638.24 and 274,325.68 is: 378,552.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,555.08 : 628,638.24 = 274,325.68 : x
  2. Step 2: Convert to fraction form
    455,555.08/628,638.24 = 274,325.68/x
  3. Step 3: Cross multiply
    455,555.08x = 628,638.24 × 274,325.68
  4. Step 4: Simplify right side
    455,555.08x = 172,451,612,662.00
  5. Step 5: Solve for x
    x = 172,451,612,662.00/455,555.08
  6. Step 6: Final answer
    x = 378,552.72

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.