Home / 2,140,953.62-3,211,560.16-861,556.20

Finding the Fourth Proportional to 2,140,953.62, 3,211,560.16 and 861,556.20

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Solution

The fourth proportional to 2,140,953.62, 3,211,560.16 and 861,556.20 is: 1,292,386.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,953.62 : 3,211,560.16 = 861,556.20 : x
  2. Step 2: Convert to fraction form
    2,140,953.62/3,211,560.16 = 861,556.20/x
  3. Step 3: Cross multiply
    2,140,953.62x = 3,211,560.16 × 861,556.20
  4. Step 4: Simplify right side
    2,140,953.62x = 2,766,939,567,520.99
  5. Step 5: Solve for x
    x = 2,766,939,567,520.99/2,140,953.62
  6. Step 6: Final answer
    x = 1,292,386.51

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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.