Finding the Fourth Proportional to 1,122,409.80, 1,548,900.36 and 613,114.20
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Solution
The fourth proportional to 1,122,409.80, 1,548,900.36 and 613,114.20 is: 846,083.85
Step by Step Solution
- Step 1: Write the proportion equation
1,122,409.80 : 1,548,900.36 = 613,114.20 : x - Step 2: Convert to fraction form
1,122,409.80/1,548,900.36 = 613,114.20/x - Step 3: Cross multiply
1,122,409.80x = 1,548,900.36 × 613,114.20 - Step 4: Simplify right side
1,122,409.80x = 949,652,805,101.11 - Step 5: Solve for x
x = 949,652,805,101.11/1,122,409.80 - Step 6: Final answer
x = 846,083.85
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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.