Home / 1,145,212.20-1,717,818.30-1,079,893.80

Finding the Fourth Proportional to 1,145,212.20, 1,717,818.30 and 1,079,893.80

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Solution

The fourth proportional to 1,145,212.20, 1,717,818.30 and 1,079,893.80 is: 1,619,840.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,212.20 : 1,717,818.30 = 1,079,893.80 : x
  2. Step 2: Convert to fraction form
    1,145,212.20/1,717,818.30 = 1,079,893.80/x
  3. Step 3: Cross multiply
    1,145,212.20x = 1,717,818.30 × 1,079,893.80
  4. Step 4: Simplify right side
    1,145,212.20x = 1,855,061,331,696.54
  5. Step 5: Solve for x
    x = 1,855,061,331,696.54/1,145,212.20
  6. Step 6: Final answer
    x = 1,619,840.70

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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.