Home / 878,361.79-1,317,219.96-301,821.57

Finding the Fourth Proportional to 878,361.79, 1,317,219.96 and 301,821.57

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Solution

The fourth proportional to 878,361.79, 1,317,219.96 and 301,821.57 is: 452,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,361.79 : 1,317,219.96 = 301,821.57 : x
  2. Step 2: Convert to fraction form
    878,361.79/1,317,219.96 = 301,821.57/x
  3. Step 3: Cross multiply
    878,361.79x = 1,317,219.96 × 301,821.57
  4. Step 4: Simplify right side
    878,361.79x = 397,565,395,796.62
  5. Step 5: Solve for x
    x = 397,565,395,796.62/878,361.79
  6. Step 6: Final answer
    x = 452,621.46

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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.