Home / 457,227.81-631,282.47-285,407.37

Finding the Fourth Proportional to 457,227.81, 631,282.47 and 285,407.37

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Solution

The fourth proportional to 457,227.81, 631,282.47 and 285,407.37 is: 394,054.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,227.81 : 631,282.47 = 285,407.37 : x
  2. Step 2: Convert to fraction form
    457,227.81/631,282.47 = 285,407.37/x
  3. Step 3: Cross multiply
    457,227.81x = 631,282.47 × 285,407.37
  4. Step 4: Simplify right side
    457,227.81x = 180,172,669,489.80
  5. Step 5: Solve for x
    x = 180,172,669,489.80/457,227.81
  6. Step 6: Final answer
    x = 394,054.49

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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.