Home / 791,104.80-1,091,729.87-428,528.66

Finding the Fourth Proportional to 791,104.80, 1,091,729.87 and 428,528.66

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Solution

The fourth proportional to 791,104.80, 1,091,729.87 and 428,528.66 is: 591,372.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,104.80 : 1,091,729.87 = 428,528.66 : x
  2. Step 2: Convert to fraction form
    791,104.80/1,091,729.87 = 428,528.66/x
  3. Step 3: Cross multiply
    791,104.80x = 1,091,729.87 × 428,528.66
  4. Step 4: Simplify right side
    791,104.80x = 467,837,536,130.43
  5. Step 5: Solve for x
    x = 467,837,536,130.43/791,104.80
  6. Step 6: Final answer
    x = 591,372.39

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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.