Finding the Fourth Proportional to 398,081.70, 597,122.55 and 319,349.70
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Solution
The fourth proportional to 398,081.70, 597,122.55 and 319,349.70 is: 479,024.55
Step by Step Solution
- Step 1: Write the proportion equation
398,081.70 : 597,122.55 = 319,349.70 : x - Step 2: Convert to fraction form
398,081.70/597,122.55 = 319,349.70/x - Step 3: Cross multiply
398,081.70x = 597,122.55 × 319,349.70 - Step 4: Simplify right side
398,081.70x = 190,690,907,205.74 - Step 5: Solve for x
x = 190,690,907,205.74/398,081.70 - Step 6: Final answer
x = 479,024.55
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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.