Finding the Fourth Proportional to 1,264,869.45, 1,745,240.14 and 774,942.48
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Solution
The fourth proportional to 1,264,869.45, 1,745,240.14 and 774,942.48 is: 1,069,249.26
Step by Step Solution
- Step 1: Write the proportion equation
1,264,869.45 : 1,745,240.14 = 774,942.48 : x - Step 2: Convert to fraction form
1,264,869.45/1,745,240.14 = 774,942.48/x - Step 3: Cross multiply
1,264,869.45x = 1,745,240.14 × 774,942.48 - Step 4: Simplify right side
1,264,869.45x = 1,352,460,722,287.15 - Step 5: Solve for x
x = 1,352,460,722,287.15/1,264,869.45 - Step 6: Final answer
x = 1,069,249.26
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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.