Home / 1,375,644.70-2,061,717.45-664,140.70

Finding the Fourth Proportional to 1,375,644.70, 2,061,717.45 and 664,140.70

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Solution

The fourth proportional to 1,375,644.70, 2,061,717.45 and 664,140.70 is: 995,366.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,644.70 : 2,061,717.45 = 664,140.70 : x
  2. Step 2: Convert to fraction form
    1,375,644.70/2,061,717.45 = 664,140.70/x
  3. Step 3: Cross multiply
    1,375,644.70x = 2,061,717.45 × 664,140.70
  4. Step 4: Simplify right side
    1,375,644.70x = 1,369,270,470,445.21
  5. Step 5: Solve for x
    x = 1,369,270,470,445.21/1,375,644.70
  6. Step 6: Final answer
    x = 995,366.37

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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.