Finding the Fourth Proportional to 789,957.98, 1,090,137.81 and 445,905.73
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Solution
The fourth proportional to 789,957.98, 1,090,137.81 and 445,905.73 is: 615,347.53
Step by Step Solution
- Step 1: Write the proportion equation
789,957.98 : 1,090,137.81 = 445,905.73 : x - Step 2: Convert to fraction form
789,957.98/1,090,137.81 = 445,905.73/x - Step 3: Cross multiply
789,957.98x = 1,090,137.81 × 445,905.73 - Step 4: Simplify right side
789,957.98x = 486,098,693,848.13 - Step 5: Solve for x
x = 486,098,693,848.13/789,957.98 - Step 6: Final answer
x = 615,347.53
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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.