Home / 931,378.26-1,397,212.38-300,355.86

Finding the Fourth Proportional to 931,378.26, 1,397,212.38 and 300,355.86

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Solution

The fourth proportional to 931,378.26, 1,397,212.38 and 300,355.86 is: 450,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,378.26 : 1,397,212.38 = 300,355.86 : x
  2. Step 2: Convert to fraction form
    931,378.26/1,397,212.38 = 300,355.86/x
  3. Step 3: Cross multiply
    931,378.26x = 1,397,212.38 × 300,355.86
  4. Step 4: Simplify right side
    931,378.26x = 419,660,925,997.55
  5. Step 5: Solve for x
    x = 419,660,925,997.55/931,378.26
  6. Step 6: Final answer
    x = 450,580.55

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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.