Finding the Fourth Proportional to 3,066,990.68, 4,232,274.45 and 1,690,330.12
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Solution
The fourth proportional to 3,066,990.68, 4,232,274.45 and 1,690,330.12 is: 2,332,560.39
Step by Step Solution
- Step 1: Write the proportion equation
3,066,990.68 : 4,232,274.45 = 1,690,330.12 : x - Step 2: Convert to fraction form
3,066,990.68/4,232,274.45 = 1,690,330.12/x - Step 3: Cross multiply
3,066,990.68x = 4,232,274.45 × 1,690,330.12 - Step 4: Simplify right side
3,066,990.68x = 7,153,940,995,336.66 - Step 5: Solve for x
x = 7,153,940,995,336.66/3,066,990.68 - Step 6: Final answer
x = 2,332,560.39
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1.5x scale
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.