Finding the Fourth Proportional to 398,122.38, 597,284.73 and 117,639.63
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Solution
The fourth proportional to 398,122.38, 597,284.73 and 117,639.63 is: 176,489.34
Step by Step Solution
- Step 1: Write the proportion equation
398,122.38 : 597,284.73 = 117,639.63 : x - Step 2: Convert to fraction form
398,122.38/597,284.73 = 117,639.63/x - Step 3: Cross multiply
398,122.38x = 597,284.73 × 117,639.63 - Step 4: Simplify right side
398,122.38x = 70,264,354,641.85 - Step 5: Solve for x
x = 70,264,354,641.85/398,122.38 - Step 6: Final answer
x = 176,489.34
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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.