Finding the Fourth Proportional to 1,218,275.76, 1,681,233.84 and 674,420.62
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Solution
The fourth proportional to 1,218,275.76, 1,681,233.84 and 674,420.62 is: 930,707.81
Step by Step Solution
- Step 1: Write the proportion equation
1,218,275.76 : 1,681,233.84 = 674,420.62 : x - Step 2: Convert to fraction form
1,218,275.76/1,681,233.84 = 674,420.62/x - Step 3: Cross multiply
1,218,275.76x = 1,681,233.84 × 674,420.62 - Step 4: Simplify right side
1,218,275.76x = 1,133,858,768,737.78 - Step 5: Solve for x
x = 1,133,858,768,737.78/1,218,275.76 - Step 6: Final answer
x = 930,707.81
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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.