Home / 857,144.18-1,285,896.09-324,653.42

Finding the Fourth Proportional to 857,144.18, 1,285,896.09 and 324,653.42

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Solution

The fourth proportional to 857,144.18, 1,285,896.09 and 324,653.42 is: 487,048.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,144.18 : 1,285,896.09 = 324,653.42 : x
  2. Step 2: Convert to fraction form
    857,144.18/1,285,896.09 = 324,653.42/x
  3. Step 3: Cross multiply
    857,144.18x = 1,285,896.09 × 324,653.42
  4. Step 4: Simplify right side
    857,144.18x = 417,470,556,953.65
  5. Step 5: Solve for x
    x = 417,470,556,953.65/857,144.18
  6. Step 6: Final answer
    x = 487,048.23

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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.