Finding the Fourth Proportional to 1,643,573.34, 2,268,087.68 and 918,427.04
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Solution
The fourth proportional to 1,643,573.34, 2,268,087.68 and 918,427.04 is: 1,267,404.99
Step by Step Solution
- Step 1: Write the proportion equation
1,643,573.34 : 2,268,087.68 = 918,427.04 : x - Step 2: Convert to fraction form
1,643,573.34/2,268,087.68 = 918,427.04/x - Step 3: Cross multiply
1,643,573.34x = 2,268,087.68 × 918,427.04 - Step 4: Simplify right side
1,643,573.34x = 2,083,073,054,402.87 - Step 5: Solve for x
x = 2,083,073,054,402.87/1,643,573.34 - Step 6: Final answer
x = 1,267,404.99
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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.