Finding the Fourth Proportional to 418,684.94, 627,743.13 and 213,014.09
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Solution
The fourth proportional to 418,684.94, 627,743.13 and 213,014.09 is: 319,376.50
Step by Step Solution
- Step 1: Write the proportion equation
418,684.94 : 627,743.13 = 213,014.09 : x - Step 2: Convert to fraction form
418,684.94/627,743.13 = 213,014.09/x - Step 3: Cross multiply
418,684.94x = 627,743.13 × 213,014.09 - Step 4: Simplify right side
418,684.94x = 133,718,131,590.70 - Step 5: Solve for x
x = 133,718,131,590.70/418,684.94 - Step 6: Final answer
x = 319,376.50
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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.