Home / 1,021,286.37-1,409,379.19-613,395.15

Finding the Fourth Proportional to 1,021,286.37, 1,409,379.19 and 613,395.15

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Solution

The fourth proportional to 1,021,286.37, 1,409,379.19 and 613,395.15 is: 846,487.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,286.37 : 1,409,379.19 = 613,395.15 : x
  2. Step 2: Convert to fraction form
    1,021,286.37/1,409,379.19 = 613,395.15/x
  3. Step 3: Cross multiply
    1,021,286.37x = 1,409,379.19 × 613,395.15
  4. Step 4: Simplify right side
    1,021,286.37x = 864,506,359,656.93
  5. Step 5: Solve for x
    x = 864,506,359,656.93/1,021,286.37
  6. Step 6: Final answer
    x = 846,487.71

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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.