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Finding the Fourth Proportional to 656,445.72, 905,942.88 and 366,076.92

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Solution

The fourth proportional to 656,445.72, 905,942.88 and 366,076.92 is: 505,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,445.72 : 905,942.88 = 366,076.92 : x
  2. Step 2: Convert to fraction form
    656,445.72/905,942.88 = 366,076.92/x
  3. Step 3: Cross multiply
    656,445.72x = 905,942.88 × 366,076.92
  4. Step 4: Simplify right side
    656,445.72x = 331,644,779,206.33
  5. Step 5: Solve for x
    x = 331,644,779,206.33/656,445.72
  6. Step 6: Final answer
    x = 505,212.80

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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.