Finding the Fourth Proportional to 764,549.94, 1,055,106.02 and 420,412.05
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Solution
The fourth proportional to 764,549.94, 1,055,106.02 and 420,412.05 is: 580,183.53
Step by Step Solution
- Step 1: Write the proportion equation
764,549.94 : 1,055,106.02 = 420,412.05 : x - Step 2: Convert to fraction form
764,549.94/1,055,106.02 = 420,412.05/x - Step 3: Cross multiply
764,549.94x = 1,055,106.02 × 420,412.05 - Step 4: Simplify right side
764,549.94x = 443,579,282,733.48 - Step 5: Solve for x
x = 443,579,282,733.48/764,549.94 - Step 6: Final answer
x = 580,183.53
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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.