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Finding the Fourth Proportional to 455,579.60, 683,369.40 and 231,630.80

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Solution

The fourth proportional to 455,579.60, 683,369.40 and 231,630.80 is: 347,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,579.60 : 683,369.40 = 231,630.80 : x
  2. Step 2: Convert to fraction form
    455,579.60/683,369.40 = 231,630.80/x
  3. Step 3: Cross multiply
    455,579.60x = 683,369.40 × 231,630.80
  4. Step 4: Simplify right side
    455,579.60x = 158,289,400,817.52
  5. Step 5: Solve for x
    x = 158,289,400,817.52/455,579.60
  6. Step 6: Final answer
    x = 347,446.20

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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.