Finding the Fourth Proportional to 716,743.40, 1,075,115.12 and 218,249.96
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Solution
The fourth proportional to 716,743.40, 1,075,115.12 and 218,249.96 is: 327,374.95
Step by Step Solution
- Step 1: Write the proportion equation
716,743.40 : 1,075,115.12 = 218,249.96 : x - Step 2: Convert to fraction form
716,743.40/1,075,115.12 = 218,249.96/x - Step 3: Cross multiply
716,743.40x = 1,075,115.12 × 218,249.96 - Step 4: Simplify right side
716,743.40x = 234,643,831,935.40 - Step 5: Solve for x
x = 234,643,831,935.40/716,743.40 - Step 6: Final answer
x = 327,374.95
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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.