Finding the Fourth Proportional to 1,556,990.79, 2,148,662.75 and 868,656.84
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Solution
The fourth proportional to 1,556,990.79, 2,148,662.75 and 868,656.84 is: 1,198,755.06
Step by Step Solution
- Step 1: Write the proportion equation
1,556,990.79 : 2,148,662.75 = 868,656.84 : x - Step 2: Convert to fraction form
1,556,990.79/2,148,662.75 = 868,656.84/x - Step 3: Cross multiply
1,556,990.79x = 2,148,662.75 × 868,656.84 - Step 4: Simplify right side
1,556,990.79x = 1,866,450,590,297.43 - Step 5: Solve for x
x = 1,866,450,590,297.43/1,556,990.79 - Step 6: Final answer
x = 1,198,755.06
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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.