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Finding the Fourth Proportional to 851,682.60, 1,276,704.70 and 662,037.80

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Solution

The fourth proportional to 851,682.60, 1,276,704.70 and 662,037.80 is: 992,419.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,682.60 : 1,276,704.70 = 662,037.80 : x
  2. Step 2: Convert to fraction form
    851,682.60/1,276,704.70 = 662,037.80/x
  3. Step 3: Cross multiply
    851,682.60x = 1,276,704.70 × 662,037.80
  4. Step 4: Simplify right side
    851,682.60x = 845,226,770,837.66
  5. Step 5: Solve for x
    x = 845,226,770,837.66/851,682.60
  6. Step 6: Final answer
    x = 992,419.91

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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.