Home / 1,620,668.16-2,431,004.07-422,589.48

Finding the Fourth Proportional to 1,620,668.16, 2,431,004.07 and 422,589.48

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Solution

The fourth proportional to 1,620,668.16, 2,431,004.07 and 422,589.48 is: 633,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,668.16 : 2,431,004.07 = 422,589.48 : x
  2. Step 2: Convert to fraction form
    1,620,668.16/2,431,004.07 = 422,589.48/x
  3. Step 3: Cross multiply
    1,620,668.16x = 2,431,004.07 × 422,589.48
  4. Step 4: Simplify right side
    1,620,668.16x = 1,027,316,745,819.18
  5. Step 5: Solve for x
    x = 1,027,316,745,819.18/1,620,668.16
  6. Step 6: Final answer
    x = 633,884.70

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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.