Finding the Fourth Proportional to 1,331,343.75, 1,837,254.38 and 727,731.75
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Solution
The fourth proportional to 1,331,343.75, 1,837,254.38 and 727,731.75 is: 1,004,269.82
Step by Step Solution
- Step 1: Write the proportion equation
1,331,343.75 : 1,837,254.38 = 727,731.75 : x - Step 2: Convert to fraction form
1,331,343.75/1,837,254.38 = 727,731.75/x - Step 3: Cross multiply
1,331,343.75x = 1,837,254.38 × 727,731.75 - Step 4: Simplify right side
1,331,343.75x = 1,337,028,345,152.57 - Step 5: Solve for x
x = 1,337,028,345,152.57/1,331,343.75 - Step 6: Final answer
x = 1,004,269.82
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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.