Home / 694,054.60-957,789.93-388,131.57

Finding the Fourth Proportional to 694,054.60, 957,789.93 and 388,131.57

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Solution

The fourth proportional to 694,054.60, 957,789.93 and 388,131.57 is: 535,618.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,054.60 : 957,789.93 = 388,131.57 : x
  2. Step 2: Convert to fraction form
    694,054.60/957,789.93 = 388,131.57/x
  3. Step 3: Cross multiply
    694,054.60x = 957,789.93 × 388,131.57
  4. Step 4: Simplify right side
    694,054.60x = 371,748,509,261.09
  5. Step 5: Solve for x
    x = 371,748,509,261.09/694,054.60
  6. Step 6: Final answer
    x = 535,618.54

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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.