Finding the Fourth Proportional to 821,624.58, 1,233,451.76 and 389,754.95
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Solution
The fourth proportional to 821,624.58, 1,233,451.76 and 389,754.95 is: 585,113.85
Step by Step Solution
- Step 1: Write the proportion equation
821,624.58 : 1,233,451.76 = 389,754.95 : x - Step 2: Convert to fraction form
821,624.58/1,233,451.76 = 389,754.95/x - Step 3: Cross multiply
821,624.58x = 1,233,451.76 × 389,754.95 - Step 4: Simplify right side
821,624.58x = 480,743,920,930.18 - Step 5: Solve for x
x = 480,743,920,930.18/821,624.58 - Step 6: Final answer
x = 585,113.85
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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.