Home / 890,257.49-1,336,720.30-770,683.26

Finding the Fourth Proportional to 890,257.49, 1,336,720.30 and 770,683.26

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Solution

The fourth proportional to 890,257.49, 1,336,720.30 and 770,683.26 is: 1,157,179.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,257.49 : 1,336,720.30 = 770,683.26 : x
  2. Step 2: Convert to fraction form
    890,257.49/1,336,720.30 = 770,683.26/x
  3. Step 3: Cross multiply
    890,257.49x = 1,336,720.30 × 770,683.26
  4. Step 4: Simplify right side
    890,257.49x = 1,030,187,958,512.18
  5. Step 5: Solve for x
    x = 1,030,187,958,512.18/890,257.49
  6. Step 6: Final answer
    x = 1,157,179.78

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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.