Finding the Fourth Proportional to 713,141.92, 984,143.55 and 390,845.08
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Solution
The fourth proportional to 713,141.92, 984,143.55 and 390,845.08 is: 539,370.43
Step by Step Solution
- Step 1: Write the proportion equation
713,141.92 : 984,143.55 = 390,845.08 : x - Step 2: Convert to fraction form
713,141.92/984,143.55 = 390,845.08/x - Step 3: Cross multiply
713,141.92x = 984,143.55 × 390,845.08 - Step 4: Simplify right side
713,141.92x = 384,647,664,531.23 - Step 5: Solve for x
x = 384,647,664,531.23/713,141.92 - Step 6: Final answer
x = 539,370.43
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.