Home / 2,810,511.20-4,215,329.40-788,556.80

Finding the Fourth Proportional to 2,810,511.20, 4,215,329.40 and 788,556.80

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Solution

The fourth proportional to 2,810,511.20, 4,215,329.40 and 788,556.80 is: 1,182,712.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,810,511.20 : 4,215,329.40 = 788,556.80 : x
  2. Step 2: Convert to fraction form
    2,810,511.20/4,215,329.40 = 788,556.80/x
  3. Step 3: Cross multiply
    2,810,511.20x = 4,215,329.40 × 788,556.80
  4. Step 4: Simplify right side
    2,810,511.20x = 3,324,026,662,609.92
  5. Step 5: Solve for x
    x = 3,324,026,662,609.92/2,810,511.20
  6. Step 6: Final answer
    x = 1,182,712.48

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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.