Finding the Fourth Proportional to 1,394,321.84, 1,924,005.96 and 782,394.48
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Solution
The fourth proportional to 1,394,321.84, 1,924,005.96 and 782,394.48 is: 1,079,615.62
Step by Step Solution
- Step 1: Write the proportion equation
1,394,321.84 : 1,924,005.96 = 782,394.48 : x - Step 2: Convert to fraction form
1,394,321.84/1,924,005.96 = 782,394.48/x - Step 3: Cross multiply
1,394,321.84x = 1,924,005.96 × 782,394.48 - Step 4: Simplify right side
1,394,321.84x = 1,505,331,642,591.10 - Step 5: Solve for x
x = 1,505,331,642,591.10/1,394,321.84 - Step 6: Final answer
x = 1,079,615.62
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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.