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Finding the Fourth Proportional to 382,680.20, 574,020.30 and 330,192.20

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Solution

The fourth proportional to 382,680.20, 574,020.30 and 330,192.20 is: 495,288.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,680.20 : 574,020.30 = 330,192.20 : x
  2. Step 2: Convert to fraction form
    382,680.20/574,020.30 = 330,192.20/x
  3. Step 3: Cross multiply
    382,680.20x = 574,020.30 × 330,192.20
  4. Step 4: Simplify right side
    382,680.20x = 189,537,025,701.66
  5. Step 5: Solve for x
    x = 189,537,025,701.66/382,680.20
  6. Step 6: Final answer
    x = 495,288.30

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1.5x scale

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.