Finding the Fourth Proportional to 990,369.24, 1,366,705.74 and 537,660.12
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Solution
The fourth proportional to 990,369.24, 1,366,705.74 and 537,660.12 is: 741,968.90
Step by Step Solution
- Step 1: Write the proportion equation
990,369.24 : 1,366,705.74 = 537,660.12 : x - Step 2: Convert to fraction form
990,369.24/1,366,705.74 = 537,660.12/x - Step 3: Cross multiply
990,369.24x = 1,366,705.74 × 537,660.12 - Step 4: Simplify right side
990,369.24x = 734,823,172,173.09 - Step 5: Solve for x
x = 734,823,172,173.09/990,369.24 - Step 6: Final answer
x = 741,968.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.