Home / 2,142,456.72-3,213,703.26-545,021.16

Finding the Fourth Proportional to 2,142,456.72, 3,213,703.26 and 545,021.16

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Solution

The fourth proportional to 2,142,456.72, 3,213,703.26 and 545,021.16 is: 817,536.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,456.72 : 3,213,703.26 = 545,021.16 : x
  2. Step 2: Convert to fraction form
    2,142,456.72/3,213,703.26 = 545,021.16/x
  3. Step 3: Cross multiply
    2,142,456.72x = 3,213,703.26 × 545,021.16
  4. Step 4: Simplify right side
    2,142,456.72x = 1,751,536,278,660.98
  5. Step 5: Solve for x
    x = 1,751,536,278,660.98/2,142,456.72
  6. Step 6: Final answer
    x = 817,536.36

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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.