Home / 1,642,673.12-2,460,572.64-1,321,086.65

Finding the Fourth Proportional to 1,642,673.12, 2,460,572.64 and 1,321,086.65

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Solution

The fourth proportional to 1,642,673.12, 2,460,572.64 and 1,321,086.65 is: 1,978,865.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,673.12 : 2,460,572.64 = 1,321,086.65 : x
  2. Step 2: Convert to fraction form
    1,642,673.12/2,460,572.64 = 1,321,086.65/x
  3. Step 3: Cross multiply
    1,642,673.12x = 2,460,572.64 × 1,321,086.65
  4. Step 4: Simplify right side
    1,642,673.12x = 3,250,629,653,756.39
  5. Step 5: Solve for x
    x = 3,250,629,653,756.39/1,642,673.12
  6. Step 6: Final answer
    x = 1,978,865.80

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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.