Finding the Fourth Proportional to 384,084.36, 530,286.08 and 343,728.74
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Solution
The fourth proportional to 384,084.36, 530,286.08 and 343,728.74 is: 474,569.09
Step by Step Solution
- Step 1: Write the proportion equation
384,084.36 : 530,286.08 = 343,728.74 : x - Step 2: Convert to fraction form
384,084.36/530,286.08 = 343,728.74/x - Step 3: Cross multiply
384,084.36x = 530,286.08 × 343,728.74 - Step 4: Simplify right side
384,084.36x = 182,274,566,117.94 - Step 5: Solve for x
x = 182,274,566,117.94/384,084.36 - Step 6: Final answer
x = 474,569.09
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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.