Finding the Fourth Proportional to 718,403.08, 1,077,604.64 and 318,949.96
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Solution
The fourth proportional to 718,403.08, 1,077,604.64 and 318,949.96 is: 478,424.95
Step by Step Solution
- Step 1: Write the proportion equation
718,403.08 : 1,077,604.64 = 318,949.96 : x - Step 2: Convert to fraction form
718,403.08/1,077,604.64 = 318,949.96/x - Step 3: Cross multiply
718,403.08x = 1,077,604.64 × 318,949.96 - Step 4: Simplify right side
718,403.08x = 343,701,956,823.81 - Step 5: Solve for x
x = 343,701,956,823.81/718,403.08 - Step 6: Final answer
x = 478,424.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.