Finding the Fourth Proportional to 672,473.84, 928,020.12 and 370,678.64
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Solution
The fourth proportional to 672,473.84, 928,020.12 and 370,678.64 is: 511,539.95
Step by Step Solution
- Step 1: Write the proportion equation
672,473.84 : 928,020.12 = 370,678.64 : x - Step 2: Convert to fraction form
672,473.84/928,020.12 = 370,678.64/x - Step 3: Cross multiply
672,473.84x = 928,020.12 × 370,678.64 - Step 4: Simplify right side
672,473.84x = 343,997,235,974.24 - Step 5: Solve for x
x = 343,997,235,974.24/672,473.84 - Step 6: Final answer
x = 511,539.95
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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.