Finding the Fourth Proportional to 393,979.45, 590,120.36 and 266,922.62
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Solution
The fourth proportional to 393,979.45, 590,120.36 and 266,922.62 is: 399,808.86
Step by Step Solution
- Step 1: Write the proportion equation
393,979.45 : 590,120.36 = 266,922.62 : x - Step 2: Convert to fraction form
393,979.45/590,120.36 = 266,922.62/x - Step 3: Cross multiply
393,979.45x = 590,120.36 × 266,922.62 - Step 4: Simplify right side
393,979.45x = 157,516,471,271.93 - Step 5: Solve for x
x = 157,516,471,271.93/393,979.45 - Step 6: Final answer
x = 399,808.86
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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.