Finding the Fourth Proportional to 439,621.63, 606,684.74 and 258,357.60
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Solution
The fourth proportional to 439,621.63, 606,684.74 and 258,357.60 is: 356,537.54
Step by Step Solution
- Step 1: Write the proportion equation
439,621.63 : 606,684.74 = 258,357.60 : x - Step 2: Convert to fraction form
439,621.63/606,684.74 = 258,357.60/x - Step 3: Cross multiply
439,621.63x = 606,684.74 × 258,357.60 - Step 4: Simplify right side
439,621.63x = 156,741,612,091.24 - Step 5: Solve for x
x = 156,741,612,091.24/439,621.63 - Step 6: Final answer
x = 356,537.54
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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.