Home / 878,981.28-1,318,523.40-339,240.48

Finding the Fourth Proportional to 878,981.28, 1,318,523.40 and 339,240.48

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Solution

The fourth proportional to 878,981.28, 1,318,523.40 and 339,240.48 is: 508,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,981.28 : 1,318,523.40 = 339,240.48 : x
  2. Step 2: Convert to fraction form
    878,981.28/1,318,523.40 = 339,240.48/x
  3. Step 3: Cross multiply
    878,981.28x = 1,318,523.40 × 339,240.48
  4. Step 4: Simplify right side
    878,981.28x = 447,296,511,107.23
  5. Step 5: Solve for x
    x = 447,296,511,107.23/878,981.28
  6. Step 6: Final answer
    x = 508,880.59

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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.