Finding the Fourth Proportional to 1,294,861.62, 1,787,253.66 and 764,897.13
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Solution
The fourth proportional to 1,294,861.62, 1,787,253.66 and 764,897.13 is: 1,055,761.62
Step by Step Solution
- Step 1: Write the proportion equation
1,294,861.62 : 1,787,253.66 = 764,897.13 : x - Step 2: Convert to fraction form
1,294,861.62/1,787,253.66 = 764,897.13/x - Step 3: Cross multiply
1,294,861.62x = 1,787,253.66 × 764,897.13 - Step 4: Simplify right side
1,294,861.62x = 1,367,065,196,780.13 - Step 5: Solve for x
x = 1,367,065,196,780.13/1,294,861.62 - Step 6: Final answer
x = 1,055,761.62
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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.