Finding the Fourth Proportional to 3,603,988.40, 4,973,505.93 and 1,972,394.81
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Solution
The fourth proportional to 3,603,988.40, 4,973,505.93 and 1,972,394.81 is: 2,721,905.90
Step by Step Solution
- Step 1: Write the proportion equation
3,603,988.40 : 4,973,505.93 = 1,972,394.81 : x - Step 2: Convert to fraction form
3,603,988.40/4,973,505.93 = 1,972,394.81/x - Step 3: Cross multiply
3,603,988.40x = 4,973,505.93 × 1,972,394.81 - Step 4: Simplify right side
3,603,988.40x = 9,809,717,283,836.22 - Step 5: Solve for x
x = 9,809,717,283,836.22/3,603,988.40 - Step 6: Final answer
x = 2,721,905.90
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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.