Finding the Fourth Proportional to 636,074.09, 877,784.15 and 349,623.53
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Solution
The fourth proportional to 636,074.09, 877,784.15 and 349,623.53 is: 482,481.52
Step by Step Solution
- Step 1: Write the proportion equation
636,074.09 : 877,784.15 = 349,623.53 : x - Step 2: Convert to fraction form
636,074.09/877,784.15 = 349,623.53/x - Step 3: Cross multiply
636,074.09x = 877,784.15 × 349,623.53 - Step 4: Simplify right side
636,074.09x = 306,893,993,101.05 - Step 5: Solve for x
x = 306,893,993,101.05/636,074.09 - Step 6: Final answer
x = 482,481.52
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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.