Home / 727,912.81-1,004,523.60-422,170.39

Finding the Fourth Proportional to 727,912.81, 1,004,523.60 and 422,170.39

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Solution

The fourth proportional to 727,912.81, 1,004,523.60 and 422,170.39 is: 582,597.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,912.81 : 1,004,523.60 = 422,170.39 : x
  2. Step 2: Convert to fraction form
    727,912.81/1,004,523.60 = 422,170.39/x
  3. Step 3: Cross multiply
    727,912.81x = 1,004,523.60 × 422,170.39
  4. Step 4: Simplify right side
    727,912.81x = 424,080,119,976.20
  5. Step 5: Solve for x
    x = 424,080,119,976.20/727,912.81
  6. Step 6: Final answer
    x = 582,597.41

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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.