Home / 878,954.66-1,318,563.60-318,120.38

Finding the Fourth Proportional to 878,954.66, 1,318,563.60 and 318,120.38

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Solution

The fourth proportional to 878,954.66, 1,318,563.60 and 318,120.38 is: 477,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,954.66 : 1,318,563.60 = 318,120.38 : x
  2. Step 2: Convert to fraction form
    878,954.66/1,318,563.60 = 318,120.38/x
  3. Step 3: Cross multiply
    878,954.66x = 1,318,563.60 × 318,120.38
  4. Step 4: Simplify right side
    878,954.66x = 419,461,946,893.35
  5. Step 5: Solve for x
    x = 419,461,946,893.35/878,954.66
  6. Step 6: Final answer
    x = 477,228.20

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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.