Finding the Fourth Proportional to 856,030.68, 1,284,172.12 and 257,040.09
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Solution
The fourth proportional to 856,030.68, 1,284,172.12 and 257,040.09 is: 385,597.99
Step by Step Solution
- Step 1: Write the proportion equation
856,030.68 : 1,284,172.12 = 257,040.09 : x - Step 2: Convert to fraction form
856,030.68/1,284,172.12 = 257,040.09/x - Step 3: Cross multiply
856,030.68x = 1,284,172.12 × 257,040.09 - Step 4: Simplify right side
856,030.68x = 330,083,710,879.43 - Step 5: Solve for x
x = 330,083,710,879.43/856,030.68 - Step 6: Final answer
x = 385,597.99
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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.