Finding the Fourth Proportional to 834,261.75, 1,240,660.64 and 807,689.43
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Solution
The fourth proportional to 834,261.75, 1,240,660.64 and 807,689.43 is: 1,201,143.99
Step by Step Solution
- Step 1: Write the proportion equation
834,261.75 : 1,240,660.64 = 807,689.43 : x - Step 2: Convert to fraction form
834,261.75/1,240,660.64 = 807,689.43/x - Step 3: Cross multiply
834,261.75x = 1,240,660.64 × 807,689.43 - Step 4: Simplify right side
834,261.75x = 1,002,068,485,145.04 - Step 5: Solve for x
x = 1,002,068,485,145.04/834,261.75 - Step 6: Final answer
x = 1,201,143.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.