Home / 457,039.56-630,610.20-293,781.36

Finding the Fourth Proportional to 457,039.56, 630,610.20 and 293,781.36

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Solution

The fourth proportional to 457,039.56, 630,610.20 and 293,781.36 is: 405,351.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,039.56 : 630,610.20 = 293,781.36 : x
  2. Step 2: Convert to fraction form
    457,039.56/630,610.20 = 293,781.36/x
  3. Step 3: Cross multiply
    457,039.56x = 630,610.20 × 293,781.36
  4. Step 4: Simplify right side
    457,039.56x = 185,261,522,185.87
  5. Step 5: Solve for x
    x = 185,261,522,185.87/457,039.56
  6. Step 6: Final answer
    x = 405,351.17

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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.