Finding the Fourth Proportional to 1,218,313.68, 1,681,252.74 and 674,438.28
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Solution
The fourth proportional to 1,218,313.68, 1,681,252.74 and 674,438.28 is: 930,713.68
Step by Step Solution
- Step 1: Write the proportion equation
1,218,313.68 : 1,681,252.74 = 674,438.28 : x - Step 2: Convert to fraction form
1,218,313.68/1,681,252.74 = 674,438.28/x - Step 3: Cross multiply
1,218,313.68x = 1,681,252.74 × 674,438.28 - Step 4: Simplify right side
1,218,313.68x = 1,133,901,206,210.89 - Step 5: Solve for x
x = 1,133,901,206,210.89/1,218,313.68 - Step 6: Final answer
x = 930,713.68
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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.