Home / 457,577.91-631,243.94-287,905.59

Finding the Fourth Proportional to 457,577.91, 631,243.94 and 287,905.59

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Solution

The fourth proportional to 457,577.91, 631,243.94 and 287,905.59 is: 397,175.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,577.91 : 631,243.94 = 287,905.59 : x
  2. Step 2: Convert to fraction form
    457,577.91/631,243.94 = 287,905.59/x
  3. Step 3: Cross multiply
    457,577.91x = 631,243.94 × 287,905.59
  4. Step 4: Simplify right side
    457,577.91x = 181,738,657,540.10
  5. Step 5: Solve for x
    x = 181,738,657,540.10/457,577.91
  6. Step 6: Final answer
    x = 397,175.33

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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.