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Finding the Fourth Proportional to 489,244.40, 733,866.60 and 445,698.80

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Solution

The fourth proportional to 489,244.40, 733,866.60 and 445,698.80 is: 668,548.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,244.40 : 733,866.60 = 445,698.80 : x
  2. Step 2: Convert to fraction form
    489,244.40/733,866.60 = 445,698.80/x
  3. Step 3: Cross multiply
    489,244.40x = 733,866.60 × 445,698.80
  4. Step 4: Simplify right side
    489,244.40x = 327,083,462,980.08
  5. Step 5: Solve for x
    x = 327,083,462,980.08/489,244.40
  6. Step 6: Final answer
    x = 668,548.20

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Similar ratio
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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.