Finding the Fourth Proportional to 643,534.48, 965,327.64 and 306,401.68
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Solution
The fourth proportional to 643,534.48, 965,327.64 and 306,401.68 is: 459,614.86
Step by Step Solution
- Step 1: Write the proportion equation
643,534.48 : 965,327.64 = 306,401.68 : x - Step 2: Convert to fraction form
643,534.48/965,327.64 = 306,401.68/x - Step 3: Cross multiply
643,534.48x = 965,327.64 × 306,401.68 - Step 4: Simplify right side
643,534.48x = 295,778,010,646.44 - Step 5: Solve for x
x = 295,778,010,646.44/643,534.48 - Step 6: Final answer
x = 459,614.86
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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.