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Finding the Fourth Proportional to 720,250.93, 993,944.23 and 397,958.73

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Solution

The fourth proportional to 720,250.93, 993,944.23 and 397,958.73 is: 549,181.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,250.93 : 993,944.23 = 397,958.73 : x
  2. Step 2: Convert to fraction form
    720,250.93/993,944.23 = 397,958.73/x
  3. Step 3: Cross multiply
    720,250.93x = 993,944.23 × 397,958.73
  4. Step 4: Simplify right side
    720,250.93x = 395,548,778,739.44
  5. Step 5: Solve for x
    x = 395,548,778,739.44/720,250.93
  6. Step 6: Final answer
    x = 549,181.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.