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Finding the Fourth Proportional to 644,073.60, 966,110.40 and 494,601.60

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Solution

The fourth proportional to 644,073.60, 966,110.40 and 494,601.60 is: 741,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,073.60 : 966,110.40 = 494,601.60 : x
  2. Step 2: Convert to fraction form
    644,073.60/966,110.40 = 494,601.60/x
  3. Step 3: Cross multiply
    644,073.60x = 966,110.40 × 494,601.60
  4. Step 4: Simplify right side
    644,073.60x = 477,839,749,616.64
  5. Step 5: Solve for x
    x = 477,839,749,616.64/644,073.60
  6. Step 6: Final answer
    x = 741,902.40

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Double scale
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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.