Finding the Fourth Proportional to 813,361.73, 1,121,784.71 and 715,034.74
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Solution
The fourth proportional to 813,361.73, 1,121,784.71 and 715,034.74 is: 986,172.58
Step by Step Solution
- Step 1: Write the proportion equation
813,361.73 : 1,121,784.71 = 715,034.74 : x - Step 2: Convert to fraction form
813,361.73/1,121,784.71 = 715,034.74/x - Step 3: Cross multiply
813,361.73x = 1,121,784.71 × 715,034.74 - Step 4: Simplify right side
813,361.73x = 802,115,037,433.95 - Step 5: Solve for x
x = 802,115,037,433.95/813,361.73 - Step 6: Final answer
x = 986,172.58
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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.