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Finding the Fourth Proportional to 580,115.80, 870,173.70 and 343,336.60

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Solution

The fourth proportional to 580,115.80, 870,173.70 and 343,336.60 is: 515,004.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,115.80 : 870,173.70 = 343,336.60 : x
  2. Step 2: Convert to fraction form
    580,115.80/870,173.70 = 343,336.60/x
  3. Step 3: Cross multiply
    580,115.80x = 870,173.70 × 343,336.60
  4. Step 4: Simplify right side
    580,115.80x = 298,762,479,567.42
  5. Step 5: Solve for x
    x = 298,762,479,567.42/580,115.80
  6. Step 6: Final answer
    x = 515,004.90

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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.