Finding the Fourth Proportional to 831,279.44, 1,246,531.62 and 431,813
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Solution
The fourth proportional to 831,279.44, 1,246,531.62 and 431,813 is: 647,518.19
Step by Step Solution
- Step 1: Write the proportion equation
831,279.44 : 1,246,531.62 = 431,813 : x - Step 2: Convert to fraction form
831,279.44/1,246,531.62 = 431,813/x - Step 3: Cross multiply
831,279.44x = 1,246,531.62 × 431,813 - Step 4: Simplify right side
831,279.44x = 538,268,558,427.06 - Step 5: Solve for x
x = 538,268,558,427.06/831,279.44 - Step 6: Final answer
x = 647,518.19
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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.