Home / 414,288.72-621,039.36-264,107.52

Finding the Fourth Proportional to 414,288.72, 621,039.36 and 264,107.52

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Solution

The fourth proportional to 414,288.72, 621,039.36 and 264,107.52 is: 395,910.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,288.72 : 621,039.36 = 264,107.52 : x
  2. Step 2: Convert to fraction form
    414,288.72/621,039.36 = 264,107.52/x
  3. Step 3: Cross multiply
    414,288.72x = 621,039.36 × 264,107.52
  4. Step 4: Simplify right side
    414,288.72x = 164,021,165,191.99
  5. Step 5: Solve for x
    x = 164,021,165,191.99/414,288.72
  6. Step 6: Final answer
    x = 395,910.28

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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.