Home / 1,343,945.91-2,015,939.37-491,190.87

Finding the Fourth Proportional to 1,343,945.91, 2,015,939.37 and 491,190.87

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Solution

The fourth proportional to 1,343,945.91, 2,015,939.37 and 491,190.87 is: 736,793.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343,945.91 : 2,015,939.37 = 491,190.87 : x
  2. Step 2: Convert to fraction form
    1,343,945.91/2,015,939.37 = 491,190.87/x
  3. Step 3: Cross multiply
    1,343,945.91x = 2,015,939.37 × 491,190.87
  4. Step 4: Simplify right side
    1,343,945.91x = 990,211,013,017.55
  5. Step 5: Solve for x
    x = 990,211,013,017.55/1,343,945.91
  6. Step 6: Final answer
    x = 736,793.80

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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.