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Finding the Fourth Proportional to 671,879.10, 1,008,049.05 and 298,170.30

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Solution

The fourth proportional to 671,879.10, 1,008,049.05 and 298,170.30 is: 447,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,879.10 : 1,008,049.05 = 298,170.30 : x
  2. Step 2: Convert to fraction form
    671,879.10/1,008,049.05 = 298,170.30/x
  3. Step 3: Cross multiply
    671,879.10x = 1,008,049.05 × 298,170.30
  4. Step 4: Simplify right side
    671,879.10x = 300,570,287,653.22
  5. Step 5: Solve for x
    x = 300,570,287,653.22/671,879.10
  6. Step 6: Final answer
    x = 447,357.70

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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.