Finding the Fourth Proportional to 636,302.25, 878,102.80 and 345,914.42
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Solution
The fourth proportional to 636,302.25, 878,102.80 and 345,914.42 is: 477,364.99
Step by Step Solution
- Step 1: Write the proportion equation
636,302.25 : 878,102.80 = 345,914.42 : x - Step 2: Convert to fraction form
636,302.25/878,102.80 = 345,914.42/x - Step 3: Cross multiply
636,302.25x = 878,102.80 × 345,914.42 - Step 4: Simplify right side
636,302.25x = 303,748,415,507.08 - Step 5: Solve for x
x = 303,748,415,507.08/636,302.25 - Step 6: Final answer
x = 477,364.99
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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.