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Finding the Fourth Proportional to 489,964.60, 734,169.30 and 323,558.20

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Solution

The fourth proportional to 489,964.60, 734,169.30 and 323,558.20 is: 484,823.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,964.60 : 734,169.30 = 323,558.20 : x
  2. Step 2: Convert to fraction form
    489,964.60/734,169.30 = 323,558.20/x
  3. Step 3: Cross multiply
    489,964.60x = 734,169.30 × 323,558.20
  4. Step 4: Simplify right side
    489,964.60x = 237,546,497,203.26
  5. Step 5: Solve for x
    x = 237,546,497,203.26/489,964.60
  6. Step 6: Final answer
    x = 484,823.80

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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.