Home / 457,224.80-631,278.32-285,404.36

Finding the Fourth Proportional to 457,224.80, 631,278.32 and 285,404.36

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Solution

The fourth proportional to 457,224.80, 631,278.32 and 285,404.36 is: 394,050.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,224.80 : 631,278.32 = 285,404.36 : x
  2. Step 2: Convert to fraction form
    457,224.80/631,278.32 = 285,404.36/x
  3. Step 3: Cross multiply
    457,224.80x = 631,278.32 × 285,404.36
  4. Step 4: Simplify right side
    457,224.80x = 180,169,580,318.06
  5. Step 5: Solve for x
    x = 180,169,580,318.06/457,224.80
  6. Step 6: Final answer
    x = 394,050.33

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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.