Finding the Fourth Proportional to 1,278,822.18, 1,764,662.82 and 819,125.76
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Solution
The fourth proportional to 1,278,822.18, 1,764,662.82 and 819,125.76 is: 1,130,321.94
Step by Step Solution
- Step 1: Write the proportion equation
1,278,822.18 : 1,764,662.82 = 819,125.76 : x - Step 2: Convert to fraction form
1,278,822.18/1,764,662.82 = 819,125.76/x - Step 3: Cross multiply
1,278,822.18x = 1,764,662.82 × 819,125.76 - Step 4: Simplify right side
1,278,822.18x = 1,445,480,773,576.24 - Step 5: Solve for x
x = 1,445,480,773,576.24/1,278,822.18 - Step 6: Final answer
x = 1,130,321.94
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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.