Finding the Fourth Proportional to 1,943,430.81, 2,681,927.49 and 1,083,990.39
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Solution
The fourth proportional to 1,943,430.81, 2,681,927.49 and 1,083,990.39 is: 1,495,902.82
Step by Step Solution
- Step 1: Write the proportion equation
1,943,430.81 : 2,681,927.49 = 1,083,990.39 : x - Step 2: Convert to fraction form
1,943,430.81/2,681,927.49 = 1,083,990.39/x - Step 3: Cross multiply
1,943,430.81x = 2,681,927.49 × 1,083,990.39 - Step 4: Simplify right side
1,943,430.81x = 2,907,183,625,836.82 - Step 5: Solve for x
x = 2,907,183,625,836.82/1,943,430.81 - Step 6: Final answer
x = 1,495,902.82
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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.