Finding the Fourth Proportional to 1,179,132.88, 1,769,073.14 and 420,958.08
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Solution
The fourth proportional to 1,179,132.88, 1,769,073.14 and 420,958.08 is: 631,570.58
Step by Step Solution
- Step 1: Write the proportion equation
1,179,132.88 : 1,769,073.14 = 420,958.08 : x - Step 2: Convert to fraction form
1,179,132.88/1,769,073.14 = 420,958.08/x - Step 3: Cross multiply
1,179,132.88x = 1,769,073.14 × 420,958.08 - Step 4: Simplify right side
1,179,132.88x = 744,705,632,393.97 - Step 5: Solve for x
x = 744,705,632,393.97/1,179,132.88 - Step 6: Final answer
x = 631,570.58
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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.