Finding the Fourth Proportional to 1,225,102.77, 1,690,643.21 and 681,226.88
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Solution
The fourth proportional to 1,225,102.77, 1,690,643.21 and 681,226.88 is: 940,093.86
Step by Step Solution
- Step 1: Write the proportion equation
1,225,102.77 : 1,690,643.21 = 681,226.88 : x - Step 2: Convert to fraction form
1,225,102.77/1,690,643.21 = 681,226.88/x - Step 3: Cross multiply
1,225,102.77x = 1,690,643.21 × 681,226.88 - Step 4: Simplify right side
1,225,102.77x = 1,151,711,587,282.13 - Step 5: Solve for x
x = 1,151,711,587,282.13/1,225,102.77 - Step 6: Final answer
x = 940,093.86
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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.