Home / 644,725.48-889,466.47-372,743.56

Finding the Fourth Proportional to 644,725.48, 889,466.47 and 372,743.56

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Solution

The fourth proportional to 644,725.48, 889,466.47 and 372,743.56 is: 514,238.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,725.48 : 889,466.47 = 372,743.56 : x
  2. Step 2: Convert to fraction form
    644,725.48/889,466.47 = 372,743.56/x
  3. Step 3: Cross multiply
    644,725.48x = 889,466.47 × 372,743.56
  4. Step 4: Simplify right side
    644,725.48x = 331,542,892,217.38
  5. Step 5: Solve for x
    x = 331,542,892,217.38/644,725.48
  6. Step 6: Final answer
    x = 514,238.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.