Finding the Fourth Proportional to 398,730.19, 597,602.79 and 342,172.75
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Solution
The fourth proportional to 398,730.19, 597,602.79 and 342,172.75 is: 512,836.49
Step by Step Solution
- Step 1: Write the proportion equation
398,730.19 : 597,602.79 = 342,172.75 : x - Step 2: Convert to fraction form
398,730.19/597,602.79 = 342,172.75/x - Step 3: Cross multiply
398,730.19x = 597,602.79 × 342,172.75 - Step 4: Simplify right side
398,730.19x = 204,483,390,061.97 - Step 5: Solve for x
x = 204,483,390,061.97/398,730.19 - Step 6: Final answer
x = 512,836.49
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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.