Finding the Fourth Proportional to 636,664.68, 878,722.08 and 364,914.75
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Solution
The fourth proportional to 636,664.68, 878,722.08 and 364,914.75 is: 503,653.90
Step by Step Solution
- Step 1: Write the proportion equation
636,664.68 : 878,722.08 = 364,914.75 : x - Step 2: Convert to fraction form
636,664.68/878,722.08 = 364,914.75/x - Step 3: Cross multiply
636,664.68x = 878,722.08 × 364,914.75 - Step 4: Simplify right side
636,664.68x = 320,658,648,142.68 - Step 5: Solve for x
x = 320,658,648,142.68/636,664.68 - Step 6: Final answer
x = 503,653.90
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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.