Finding the Fourth Proportional to 408,763.72, 613,270.42 and 209,225.48
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Solution
The fourth proportional to 408,763.72, 613,270.42 and 209,225.48 is: 313,902.12
Step by Step Solution
- Step 1: Write the proportion equation
408,763.72 : 613,270.42 = 209,225.48 : x - Step 2: Convert to fraction form
408,763.72/613,270.42 = 209,225.48/x - Step 3: Cross multiply
408,763.72x = 613,270.42 × 209,225.48 - Step 4: Simplify right side
408,763.72x = 128,311,797,994.30 - Step 5: Solve for x
x = 128,311,797,994.30/408,763.72 - Step 6: Final answer
x = 313,902.12
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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.