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Finding the Fourth Proportional to 862,994.88, 1,294,504.32 and 330,542.88

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Solution

The fourth proportional to 862,994.88, 1,294,504.32 and 330,542.88 is: 495,818.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,994.88 : 1,294,504.32 = 330,542.88 : x
  2. Step 2: Convert to fraction form
    862,994.88/1,294,504.32 = 330,542.88/x
  3. Step 3: Cross multiply
    862,994.88x = 1,294,504.32 × 330,542.88
  4. Step 4: Simplify right side
    862,994.88x = 427,889,186,105.24
  5. Step 5: Solve for x
    x = 427,889,186,105.24/862,994.88
  6. Step 6: Final answer
    x = 495,818.92

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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.