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Finding the Fourth Proportional to 489,662.30, 734,493.45 and 454,232.90

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Solution

The fourth proportional to 489,662.30, 734,493.45 and 454,232.90 is: 681,349.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,662.30 : 734,493.45 = 454,232.90 : x
  2. Step 2: Convert to fraction form
    489,662.30/734,493.45 = 454,232.90/x
  3. Step 3: Cross multiply
    489,662.30x = 734,493.45 × 454,232.90
  4. Step 4: Simplify right side
    489,662.30x = 333,631,089,824.51
  5. Step 5: Solve for x
    x = 333,631,089,824.51/489,662.30
  6. Step 6: Final answer
    x = 681,349.35

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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.