Finding the Fourth Proportional to 1,331,243.68, 1,837,117.20 and 727,631.68
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Solution
The fourth proportional to 1,331,243.68, 1,837,117.20 and 727,631.68 is: 1,004,132.22
Step by Step Solution
- Step 1: Write the proportion equation
1,331,243.68 : 1,837,117.20 = 727,631.68 : x - Step 2: Convert to fraction form
1,331,243.68/1,837,117.20 = 727,631.68/x - Step 3: Cross multiply
1,331,243.68x = 1,837,117.20 × 727,631.68 - Step 4: Simplify right side
1,331,243.68x = 1,336,744,674,592.90 - Step 5: Solve for x
x = 1,336,744,674,592.90/1,331,243.68 - Step 6: Final answer
x = 1,004,132.22
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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.