Finding the Fourth Proportional to 1,203,293.21, 1,661,299.49 and 774,318.83
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Solution
The fourth proportional to 1,203,293.21, 1,661,299.49 and 774,318.83 is: 1,069,045.74
Step by Step Solution
- Step 1: Write the proportion equation
1,203,293.21 : 1,661,299.49 = 774,318.83 : x - Step 2: Convert to fraction form
1,203,293.21/1,661,299.49 = 774,318.83/x - Step 3: Cross multiply
1,203,293.21x = 1,661,299.49 × 774,318.83 - Step 4: Simplify right side
1,203,293.21x = 1,286,375,477,376.40 - Step 5: Solve for x
x = 1,286,375,477,376.40/1,203,293.21 - Step 6: Final answer
x = 1,069,045.74
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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.