Finding the Fourth Proportional to 931,099.14, 1,396,620.99 and 257,220.99
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Solution
The fourth proportional to 931,099.14, 1,396,620.99 and 257,220.99 is: 385,823.83
Step by Step Solution
- Step 1: Write the proportion equation
931,099.14 : 1,396,620.99 = 257,220.99 : x - Step 2: Convert to fraction form
931,099.14/1,396,620.99 = 257,220.99/x - Step 3: Cross multiply
931,099.14x = 1,396,620.99 × 257,220.99 - Step 4: Simplify right side
931,099.14x = 359,240,233,702.58 - Step 5: Solve for x
x = 359,240,233,702.58/931,099.14 - Step 6: Final answer
x = 385,823.83
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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.