Home / 770,620.90-1,063,458.92-426,480.56

Finding the Fourth Proportional to 770,620.90, 1,063,458.92 and 426,480.56

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Solution

The fourth proportional to 770,620.90, 1,063,458.92 and 426,480.56 is: 588,544.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,620.90 : 1,063,458.92 = 426,480.56 : x
  2. Step 2: Convert to fraction form
    770,620.90/1,063,458.92 = 426,480.56/x
  3. Step 3: Cross multiply
    770,620.90x = 1,063,458.92 × 426,480.56
  4. Step 4: Simplify right side
    770,620.90x = 453,544,555,738.60
  5. Step 5: Solve for x
    x = 453,544,555,738.60/770,620.90
  6. Step 6: Final answer
    x = 588,544.32

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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.