Finding the Fourth Proportional to 1,676,478.43, 2,515,142.09 and 478,405
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Solution
The fourth proportional to 1,676,478.43, 2,515,142.09 and 478,405 is: 717,728.62
Step by Step Solution
- Step 1: Write the proportion equation
1,676,478.43 : 2,515,142.09 = 478,405 : x - Step 2: Convert to fraction form
1,676,478.43/2,515,142.09 = 478,405/x - Step 3: Cross multiply
1,676,478.43x = 2,515,142.09 × 478,405 - Step 4: Simplify right side
1,676,478.43x = 1,203,256,551,566.45 - Step 5: Solve for x
x = 1,203,256,551,566.45/1,676,478.43 - Step 6: Final answer
x = 717,728.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.