Home / 790,956.06-1,091,518.97-428,379.90

Finding the Fourth Proportional to 790,956.06, 1,091,518.97 and 428,379.90

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Solution

The fourth proportional to 790,956.06, 1,091,518.97 and 428,379.90 is: 591,164.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,956.06 : 1,091,518.97 = 428,379.90 : x
  2. Step 2: Convert to fraction form
    790,956.06/1,091,518.97 = 428,379.90/x
  3. Step 3: Cross multiply
    790,956.06x = 1,091,518.97 × 428,379.90
  4. Step 4: Simplify right side
    790,956.06x = 467,584,785,074.80
  5. Step 5: Solve for x
    x = 467,584,785,074.80/790,956.06
  6. Step 6: Final answer
    x = 591,164.05

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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.