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Finding the Fourth Proportional to 851,806.60, 1,277,709.90 and 758,494.60

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Solution

The fourth proportional to 851,806.60, 1,277,709.90 and 758,494.60 is: 1,137,741.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,806.60 : 1,277,709.90 = 758,494.60 : x
  2. Step 2: Convert to fraction form
    851,806.60/1,277,709.90 = 758,494.60/x
  3. Step 3: Cross multiply
    851,806.60x = 1,277,709.90 × 758,494.60
  4. Step 4: Simplify right side
    851,806.60x = 969,136,059,516.54
  5. Step 5: Solve for x
    x = 969,136,059,516.54/851,806.60
  6. Step 6: Final answer
    x = 1,137,741.90

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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.