Finding the Fourth Proportional to 812,310.17, 1,218,578.27 and 338,886.63
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Solution
The fourth proportional to 812,310.17, 1,218,578.27 and 338,886.63 is: 508,377.09
Step by Step Solution
- Step 1: Write the proportion equation
812,310.17 : 1,218,578.27 = 338,886.63 : x - Step 2: Convert to fraction form
812,310.17/1,218,578.27 = 338,886.63/x - Step 3: Cross multiply
812,310.17x = 1,218,578.27 × 338,886.63 - Step 4: Simplify right side
812,310.17x = 412,959,881,617.10 - Step 5: Solve for x
x = 412,959,881,617.10/812,310.17 - Step 6: Final answer
x = 508,377.09
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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.