Finding the Fourth Proportional to 465,619.81, 698,318.92 and 128,653.08
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Solution
The fourth proportional to 465,619.81, 698,318.92 and 128,653.08 is: 192,949.01
Step by Step Solution
- Step 1: Write the proportion equation
465,619.81 : 698,318.92 = 128,653.08 : x - Step 2: Convert to fraction form
465,619.81/698,318.92 = 128,653.08/x - Step 3: Cross multiply
465,619.81x = 698,318.92 × 128,653.08 - Step 4: Simplify right side
465,619.81x = 89,840,879,880.27 - Step 5: Solve for x
x = 89,840,879,880.27/465,619.81 - Step 6: Final answer
x = 192,949.01
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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.