Finding the Fourth Proportional to 1,218,317.68, 1,681,258.24 and 674,442.28
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Solution
The fourth proportional to 1,218,317.68, 1,681,258.24 and 674,442.28 is: 930,719.19
Step by Step Solution
- Step 1: Write the proportion equation
1,218,317.68 : 1,681,258.24 = 674,442.28 : x - Step 2: Convert to fraction form
1,218,317.68/1,681,258.24 = 674,442.28/x - Step 3: Cross multiply
1,218,317.68x = 1,681,258.24 × 674,442.28 - Step 4: Simplify right side
1,218,317.68x = 1,133,911,640,654.39 - Step 5: Solve for x
x = 1,133,911,640,654.39/1,218,317.68 - Step 6: Final answer
x = 930,719.19
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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.