Finding the Fourth Proportional to 851,406.84, 1,277,241.42 and 290,310.12
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Solution
The fourth proportional to 851,406.84, 1,277,241.42 and 290,310.12 is: 435,509.90
Step by Step Solution
- Step 1: Write the proportion equation
851,406.84 : 1,277,241.42 = 290,310.12 : x - Step 2: Convert to fraction form
851,406.84/1,277,241.42 = 290,310.12/x - Step 3: Cross multiply
851,406.84x = 1,277,241.42 × 290,310.12 - Step 4: Simplify right side
851,406.84x = 370,796,109,909.17 - Step 5: Solve for x
x = 370,796,109,909.17/851,406.84 - Step 6: Final answer
x = 435,509.90
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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.