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Finding the Fourth Proportional to 455,706.27, 628,906.28 and 264,779.55

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Solution

The fourth proportional to 455,706.27, 628,906.28 and 264,779.55 is: 365,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,706.27 : 628,906.28 = 264,779.55 : x
  2. Step 2: Convert to fraction form
    455,706.27/628,906.28 = 264,779.55/x
  3. Step 3: Cross multiply
    455,706.27x = 628,906.28 × 264,779.55
  4. Step 4: Simplify right side
    455,706.27x = 166,521,520,486.68
  5. Step 5: Solve for x
    x = 166,521,520,486.68/455,706.27
  6. Step 6: Final answer
    x = 365,414.15

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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.