Finding the Fourth Proportional to 825,913.12, 1,239,321.04 and 320,493.97
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Solution
The fourth proportional to 825,913.12, 1,239,321.04 and 320,493.97 is: 480,916.11
Step by Step Solution
- Step 1: Write the proportion equation
825,913.12 : 1,239,321.04 = 320,493.97 : x - Step 2: Convert to fraction form
825,913.12/1,239,321.04 = 320,493.97/x - Step 3: Cross multiply
825,913.12x = 1,239,321.04 × 320,493.97 - Step 4: Simplify right side
825,913.12x = 397,194,920,214.13 - Step 5: Solve for x
x = 397,194,920,214.13/825,913.12 - Step 6: Final answer
x = 480,916.11
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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.