Home / 785,939.54-1,084,596.58-428,243.54

Finding the Fourth Proportional to 785,939.54, 1,084,596.58 and 428,243.54

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Solution

The fourth proportional to 785,939.54, 1,084,596.58 and 428,243.54 is: 590,976.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,939.54 : 1,084,596.58 = 428,243.54 : x
  2. Step 2: Convert to fraction form
    785,939.54/1,084,596.58 = 428,243.54/x
  3. Step 3: Cross multiply
    785,939.54x = 1,084,596.58 × 428,243.54
  4. Step 4: Simplify right side
    785,939.54x = 464,471,478,891.09
  5. Step 5: Solve for x
    x = 464,471,478,891.09/785,939.54
  6. Step 6: Final answer
    x = 590,976.09

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1.5x scale

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.