Finding the Fourth Proportional to 1,173,415.75, 1,619,036.20 and 664,118.12
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Solution
The fourth proportional to 1,173,415.75, 1,619,036.20 and 664,118.12 is: 916,325.94
Step by Step Solution
- Step 1: Write the proportion equation
1,173,415.75 : 1,619,036.20 = 664,118.12 : x - Step 2: Convert to fraction form
1,173,415.75/1,619,036.20 = 664,118.12/x - Step 3: Cross multiply
1,173,415.75x = 1,619,036.20 × 664,118.12 - Step 4: Simplify right side
1,173,415.75x = 1,075,231,282,233.68 - Step 5: Solve for x
x = 1,075,231,282,233.68/1,173,415.75 - Step 6: Final answer
x = 916,325.94
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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.