Home / 1,329,996.80-1,992,806.40-768,051.20

Finding the Fourth Proportional to 1,329,996.80, 1,992,806.40 and 768,051.20

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Solution

The fourth proportional to 1,329,996.80, 1,992,806.40 and 768,051.20 is: 1,150,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,996.80 : 1,992,806.40 = 768,051.20 : x
  2. Step 2: Convert to fraction form
    1,329,996.80/1,992,806.40 = 768,051.20/x
  3. Step 3: Cross multiply
    1,329,996.80x = 1,992,806.40 × 768,051.20
  4. Step 4: Simplify right side
    1,329,996.80x = 1,530,577,346,887.68
  5. Step 5: Solve for x
    x = 1,530,577,346,887.68/1,329,996.80
  6. Step 6: Final answer
    x = 1,150,812.80

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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.