Home / 790,855.37-1,091,380.44-428,279.23

Finding the Fourth Proportional to 790,855.37, 1,091,380.44 and 428,279.23

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Solution

The fourth proportional to 790,855.37, 1,091,380.44 and 428,279.23 is: 591,025.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,855.37 : 1,091,380.44 = 428,279.23 : x
  2. Step 2: Convert to fraction form
    790,855.37/1,091,380.44 = 428,279.23/x
  3. Step 3: Cross multiply
    790,855.37x = 1,091,380.44 × 428,279.23
  4. Step 4: Simplify right side
    790,855.37x = 467,415,574,480.26
  5. Step 5: Solve for x
    x = 467,415,574,480.26/790,855.37
  6. Step 6: Final answer
    x = 591,025.35

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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.