Home / 780,361.26-1,076,752.32-493,679.58

Finding the Fourth Proportional to 780,361.26, 1,076,752.32 and 493,679.58

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Solution

The fourth proportional to 780,361.26, 1,076,752.32 and 493,679.58 is: 681,185.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,361.26 : 1,076,752.32 = 493,679.58 : x
  2. Step 2: Convert to fraction form
    780,361.26/1,076,752.32 = 493,679.58/x
  3. Step 3: Cross multiply
    780,361.26x = 1,076,752.32 × 493,679.58
  4. Step 4: Simplify right side
    780,361.26x = 531,570,633,101.63
  5. Step 5: Solve for x
    x = 531,570,633,101.63/780,361.26
  6. Step 6: Final answer
    x = 681,185.32

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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.