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Finding the Fourth Proportional to 489,132.60, 733,698.90 and 330,502.20

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Solution

The fourth proportional to 489,132.60, 733,698.90 and 330,502.20 is: 495,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,132.60 : 733,698.90 = 330,502.20 : x
  2. Step 2: Convert to fraction form
    489,132.60/733,698.90 = 330,502.20/x
  3. Step 3: Cross multiply
    489,132.60x = 733,698.90 × 330,502.20
  4. Step 4: Simplify right side
    489,132.60x = 242,489,100,587.58
  5. Step 5: Solve for x
    x = 242,489,100,587.58/489,132.60
  6. Step 6: Final answer
    x = 495,753.30

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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.