Home / 501,468.40-691,858.09-286,456.24

Finding the Fourth Proportional to 501,468.40, 691,858.09 and 286,456.24

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Solution

The fourth proportional to 501,468.40, 691,858.09 and 286,456.24 is: 395,213.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,468.40 : 691,858.09 = 286,456.24 : x
  2. Step 2: Convert to fraction form
    501,468.40/691,858.09 = 286,456.24/x
  3. Step 3: Cross multiply
    501,468.40x = 691,858.09 × 286,456.24
  4. Step 4: Simplify right side
    501,468.40x = 198,187,067,074.98
  5. Step 5: Solve for x
    x = 198,187,067,074.98/501,468.40
  6. Step 6: Final answer
    x = 395,213.47

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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.