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Finding the Fourth Proportional to 512,801.70, 769,202.55 and 483,277.20

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Solution

The fourth proportional to 512,801.70, 769,202.55 and 483,277.20 is: 724,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,801.70 : 769,202.55 = 483,277.20 : x
  2. Step 2: Convert to fraction form
    512,801.70/769,202.55 = 483,277.20/x
  3. Step 3: Cross multiply
    512,801.70x = 769,202.55 × 483,277.20
  4. Step 4: Simplify right side
    512,801.70x = 371,738,054,596.86
  5. Step 5: Solve for x
    x = 371,738,054,596.86/512,801.70
  6. Step 6: Final answer
    x = 724,915.80

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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.