Finding the Fourth Proportional to 669,798.36, 924,161.94 and 379,416.60
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Solution
The fourth proportional to 669,798.36, 924,161.94 and 379,416.60 is: 523,504.39
Step by Step Solution
- Step 1: Write the proportion equation
669,798.36 : 924,161.94 = 379,416.60 : x - Step 2: Convert to fraction form
669,798.36/924,161.94 = 379,416.60/x - Step 3: Cross multiply
669,798.36x = 924,161.94 × 379,416.60 - Step 4: Simplify right side
669,798.36x = 350,642,381,124.20 - Step 5: Solve for x
x = 350,642,381,124.20/669,798.36 - Step 6: Final answer
x = 523,504.39
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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.