Home / 790,725.87-1,091,202.36-428,149.92

Finding the Fourth Proportional to 790,725.87, 1,091,202.36 and 428,149.92

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Solution

The fourth proportional to 790,725.87, 1,091,202.36 and 428,149.92 is: 590,847.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,725.87 : 1,091,202.36 = 428,149.92 : x
  2. Step 2: Convert to fraction form
    790,725.87/1,091,202.36 = 428,149.92/x
  3. Step 3: Cross multiply
    790,725.87x = 1,091,202.36 × 428,149.92
  4. Step 4: Simplify right side
    790,725.87x = 467,198,203,137.81
  5. Step 5: Solve for x
    x = 467,198,203,137.81/790,725.87
  6. Step 6: Final answer
    x = 590,847.25

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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.