Finding the Fourth Proportional to 1,948,174.80, 2,686,740.48 and 1,223,090.07
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Solution
The fourth proportional to 1,948,174.80, 2,686,740.48 and 1,223,090.07 is: 1,686,771.43
Step by Step Solution
- Step 1: Write the proportion equation
1,948,174.80 : 2,686,740.48 = 1,223,090.07 : x - Step 2: Convert to fraction form
1,948,174.80/2,686,740.48 = 1,223,090.07/x - Step 3: Cross multiply
1,948,174.80x = 2,686,740.48 × 1,223,090.07 - Step 4: Simplify right side
1,948,174.80x = 3,286,125,601,755.03 - Step 5: Solve for x
x = 3,286,125,601,755.03/1,948,174.80 - Step 6: Final answer
x = 1,686,771.43
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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.