Home / 2,660,389.10-3,992,138.85-977,662.70

Finding the Fourth Proportional to 2,660,389.10, 3,992,138.85 and 977,662.70

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Solution

The fourth proportional to 2,660,389.10, 3,992,138.85 and 977,662.70 is: 1,467,065.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,389.10 : 3,992,138.85 = 977,662.70 : x
  2. Step 2: Convert to fraction form
    2,660,389.10/3,992,138.85 = 977,662.70/x
  3. Step 3: Cross multiply
    2,660,389.10x = 3,992,138.85 × 977,662.70
  4. Step 4: Simplify right side
    2,660,389.10x = 3,902,965,246,865.90
  5. Step 5: Solve for x
    x = 3,902,965,246,865.90/2,660,389.10
  6. Step 6: Final answer
    x = 1,467,065.57

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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.