Finding the Fourth Proportional to 764,408.29, 1,054,895.24 and 420,259.13
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Solution
The fourth proportional to 764,408.29, 1,054,895.24 and 420,259.13 is: 579,964.09
Step by Step Solution
- Step 1: Write the proportion equation
764,408.29 : 1,054,895.24 = 420,259.13 : x - Step 2: Convert to fraction form
764,408.29/1,054,895.24 = 420,259.13/x - Step 3: Cross multiply
764,408.29x = 1,054,895.24 × 420,259.13 - Step 4: Simplify right side
764,408.29x = 443,329,355,803.54 - Step 5: Solve for x
x = 443,329,355,803.54/764,408.29 - Step 6: Final answer
x = 579,964.09
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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.