Home / 787,462.98-1,180,234.85-408,174.60

Finding the Fourth Proportional to 787,462.98, 1,180,234.85 and 408,174.60

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Solution

The fourth proportional to 787,462.98, 1,180,234.85 and 408,174.60 is: 611,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,462.98 : 1,180,234.85 = 408,174.60 : x
  2. Step 2: Convert to fraction form
    787,462.98/1,180,234.85 = 408,174.60/x
  3. Step 3: Cross multiply
    787,462.98x = 1,180,234.85 × 408,174.60
  4. Step 4: Simplify right side
    787,462.98x = 481,741,885,763.94
  5. Step 5: Solve for x
    x = 481,741,885,763.94/787,462.98
  6. Step 6: Final answer
    x = 611,764.49

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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.