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Finding the Fourth Proportional to 995,059, 1,492,821.78 and 330,211

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Solution

The fourth proportional to 995,059, 1,492,821.78 and 330,211 is: 495,393.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,059 : 1,492,821.78 = 330,211 : x
  2. Step 2: Convert to fraction form
    995,059/1,492,821.78 = 330,211/x
  3. Step 3: Cross multiply
    995,059x = 1,492,821.78 × 330,211
  4. Step 4: Simplify right side
    995,059x = 492,946,172,795.58
  5. Step 5: Solve for x
    x = 492,946,172,795.58/995,059
  6. Step 6: Final answer
    x = 495,393.91

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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.