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Finding the Fourth Proportional to 489,220.40, 733,830.60 and 302,596.40

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Solution

The fourth proportional to 489,220.40, 733,830.60 and 302,596.40 is: 453,894.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,220.40 : 733,830.60 = 302,596.40 : x
  2. Step 2: Convert to fraction form
    489,220.40/733,830.60 = 302,596.40/x
  3. Step 3: Cross multiply
    489,220.40x = 733,830.60 × 302,596.40
  4. Step 4: Simplify right side
    489,220.40x = 222,054,497,769.84
  5. Step 5: Solve for x
    x = 222,054,497,769.84/489,220.40
  6. Step 6: Final answer
    x = 453,894.60

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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.