Finding the Fourth Proportional to 3,036,229.68, 4,190,263.74 and 1,678,365.12
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Solution
The fourth proportional to 3,036,229.68, 4,190,263.74 and 1,678,365.12 is: 2,316,291.34
Step by Step Solution
- Step 1: Write the proportion equation
3,036,229.68 : 4,190,263.74 = 1,678,365.12 : x - Step 2: Convert to fraction form
3,036,229.68/4,190,263.74 = 1,678,365.12/x - Step 3: Cross multiply
3,036,229.68x = 4,190,263.74 × 1,678,365.12 - Step 4: Simplify right side
3,036,229.68x = 7,032,792,504,816.75 - Step 5: Solve for x
x = 7,032,792,504,816.75/3,036,229.68 - Step 6: Final answer
x = 2,316,291.34
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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.