Home / 457,227.61-631,282.21-285,407.17

Finding the Fourth Proportional to 457,227.61, 631,282.21 and 285,407.17

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Solution

The fourth proportional to 457,227.61, 631,282.21 and 285,407.17 is: 394,054.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,227.61 : 631,282.21 = 285,407.17 : x
  2. Step 2: Convert to fraction form
    457,227.61/631,282.21 = 285,407.17/x
  3. Step 3: Cross multiply
    457,227.61x = 631,282.21 × 285,407.17
  4. Step 4: Simplify right side
    457,227.61x = 180,172,466,735.72
  5. Step 5: Solve for x
    x = 180,172,466,735.72/457,227.61
  6. Step 6: Final answer
    x = 394,054.22

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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.