Home / 785,865.38-1,084,494.22-428,169.38

Finding the Fourth Proportional to 785,865.38, 1,084,494.22 and 428,169.38

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Solution

The fourth proportional to 785,865.38, 1,084,494.22 and 428,169.38 is: 590,873.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,865.38 : 1,084,494.22 = 428,169.38 : x
  2. Step 2: Convert to fraction form
    785,865.38/1,084,494.22 = 428,169.38/x
  3. Step 3: Cross multiply
    785,865.38x = 1,084,494.22 × 428,169.38
  4. Step 4: Simplify right side
    785,865.38x = 464,347,211,298.09
  5. Step 5: Solve for x
    x = 464,347,211,298.09/785,865.38
  6. Step 6: Final answer
    x = 590,873.74

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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.