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Finding the Fourth Proportional to 489,185.40, 733,778.10 and 173,674.20

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Solution

The fourth proportional to 489,185.40, 733,778.10 and 173,674.20 is: 260,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,185.40 : 733,778.10 = 173,674.20 : x
  2. Step 2: Convert to fraction form
    489,185.40/733,778.10 = 173,674.20/x
  3. Step 3: Cross multiply
    489,185.40x = 733,778.10 × 173,674.20
  4. Step 4: Simplify right side
    489,185.40x = 127,438,324,495.02
  5. Step 5: Solve for x
    x = 127,438,324,495.02/489,185.40
  6. Step 6: Final answer
    x = 260,511.30

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Similar ratio
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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.