Home / 1,613,218.16-2,419,642.92-431,358.32

Finding the Fourth Proportional to 1,613,218.16, 2,419,642.92 and 431,358.32

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Solution

The fourth proportional to 1,613,218.16, 2,419,642.92 and 431,358.32 is: 646,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,218.16 : 2,419,642.92 = 431,358.32 : x
  2. Step 2: Convert to fraction form
    1,613,218.16/2,419,642.92 = 431,358.32/x
  3. Step 3: Cross multiply
    1,613,218.16x = 2,419,642.92 × 431,358.32
  4. Step 4: Simplify right side
    1,613,218.16x = 1,043,733,104,971.09
  5. Step 5: Solve for x
    x = 1,043,733,104,971.09/1,613,218.16
  6. Step 6: Final answer
    x = 646,988.19

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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.