Finding the Fourth Proportional to 451,474.08, 622,908.18 and 355,683.48
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Solution
The fourth proportional to 451,474.08, 622,908.18 and 355,683.48 is: 490,743.90
Step by Step Solution
- Step 1: Write the proportion equation
451,474.08 : 622,908.18 = 355,683.48 : x - Step 2: Convert to fraction form
451,474.08/622,908.18 = 355,683.48/x - Step 3: Cross multiply
451,474.08x = 622,908.18 × 355,683.48 - Step 4: Simplify right side
451,474.08x = 221,558,149,182.87 - Step 5: Solve for x
x = 221,558,149,182.87/451,474.08 - Step 6: Final answer
x = 490,743.90
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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.