Finding the Fourth Proportional to 1,418,954.38, 1,958,198.55 and 774,415.91
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Solution
The fourth proportional to 1,418,954.38, 1,958,198.55 and 774,415.91 is: 1,068,716.61
Step by Step Solution
- Step 1: Write the proportion equation
1,418,954.38 : 1,958,198.55 = 774,415.91 : x - Step 2: Convert to fraction form
1,418,954.38/1,958,198.55 = 774,415.91/x - Step 3: Cross multiply
1,418,954.38x = 1,958,198.55 × 774,415.91 - Step 4: Simplify right side
1,418,954.38x = 1,516,460,112,058.93 - Step 5: Solve for x
x = 1,516,460,112,058.93/1,418,954.38 - Step 6: Final answer
x = 1,068,716.61
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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.