Home / 791,104.30-1,091,729.18-428,528.16

Finding the Fourth Proportional to 791,104.30, 1,091,729.18 and 428,528.16

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Solution

The fourth proportional to 791,104.30, 1,091,729.18 and 428,528.16 is: 591,371.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,104.30 : 1,091,729.18 = 428,528.16 : x
  2. Step 2: Convert to fraction form
    791,104.30/1,091,729.18 = 428,528.16/x
  3. Step 3: Cross multiply
    791,104.30x = 1,091,729.18 × 428,528.16
  4. Step 4: Simplify right side
    791,104.30x = 467,836,694,581.07
  5. Step 5: Solve for x
    x = 467,836,694,581.07/791,104.30
  6. Step 6: Final answer
    x = 591,371.70

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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.