Finding the Fourth Proportional to 989,286.12, 1,484,163.10 and 787,644.68
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Solution
The fourth proportional to 989,286.12, 1,484,163.10 and 787,644.68 is: 1,181,653.26
Step by Step Solution
- Step 1: Write the proportion equation
989,286.12 : 1,484,163.10 = 787,644.68 : x - Step 2: Convert to fraction form
989,286.12/1,484,163.10 = 787,644.68/x - Step 3: Cross multiply
989,286.12x = 1,484,163.10 × 787,644.68 - Step 4: Simplify right side
989,286.12x = 1,168,993,169,967.31 - Step 5: Solve for x
x = 1,168,993,169,967.31/989,286.12 - Step 6: Final answer
x = 1,181,653.26
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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.