Home / 457,405.28-631,527.32-285,584.84

Finding the Fourth Proportional to 457,405.28, 631,527.32 and 285,584.84

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Solution

The fourth proportional to 457,405.28, 631,527.32 and 285,584.84 is: 394,299.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,405.28 : 631,527.32 = 285,584.84 : x
  2. Step 2: Convert to fraction form
    457,405.28/631,527.32 = 285,584.84/x
  3. Step 3: Cross multiply
    457,405.28x = 631,527.32 × 285,584.84
  4. Step 4: Simplify right side
    457,405.28x = 180,354,628,637.83
  5. Step 5: Solve for x
    x = 180,354,628,637.83/457,405.28
  6. Step 6: Final answer
    x = 394,299.40

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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.