Home / 680,131.04-1,020,197.28-253,660.32

Finding the Fourth Proportional to 680,131.04, 1,020,197.28 and 253,660.32

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Solution

The fourth proportional to 680,131.04, 1,020,197.28 and 253,660.32 is: 380,490.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,131.04 : 1,020,197.28 = 253,660.32 : x
  2. Step 2: Convert to fraction form
    680,131.04/1,020,197.28 = 253,660.32/x
  3. Step 3: Cross multiply
    680,131.04x = 1,020,197.28 × 253,660.32
  4. Step 4: Simplify right side
    680,131.04x = 258,783,568,507.93
  5. Step 5: Solve for x
    x = 258,783,568,507.93/680,131.04
  6. Step 6: Final answer
    x = 380,490.75

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.