Finding the Fourth Proportional to 1,218,272.74, 1,681,229.67 and 674,417.60
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Solution
The fourth proportional to 1,218,272.74, 1,681,229.67 and 674,417.60 is: 930,703.65
Step by Step Solution
- Step 1: Write the proportion equation
1,218,272.74 : 1,681,229.67 = 674,417.60 : x - Step 2: Convert to fraction form
1,218,272.74/1,681,229.67 = 674,417.60/x - Step 3: Cross multiply
1,218,272.74x = 1,681,229.67 × 674,417.60 - Step 4: Simplify right side
1,218,272.74x = 1,133,850,879,090.19 - Step 5: Solve for x
x = 1,133,850,879,090.19/1,218,272.74 - Step 6: Final answer
x = 930,703.65
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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.