Finding the Fourth Proportional to 462,570.80, 638,372.07 and 281,252.70
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Solution
The fourth proportional to 462,570.80, 638,372.07 and 281,252.70 is: 388,143.55
Step by Step Solution
- Step 1: Write the proportion equation
462,570.80 : 638,372.07 = 281,252.70 : x - Step 2: Convert to fraction form
462,570.80/638,372.07 = 281,252.70/x - Step 3: Cross multiply
462,570.80x = 638,372.07 × 281,252.70 - Step 4: Simplify right side
462,570.80x = 179,543,868,292.09 - Step 5: Solve for x
x = 179,543,868,292.09/462,570.80 - Step 6: Final answer
x = 388,143.55
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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.