Finding the Fourth Proportional to 1,121,976.84, 1,548,440.04 and 669,267.84
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Solution
The fourth proportional to 1,121,976.84, 1,548,440.04 and 669,267.84 is: 923,656.43
Step by Step Solution
- Step 1: Write the proportion equation
1,121,976.84 : 1,548,440.04 = 669,267.84 : x - Step 2: Convert to fraction form
1,121,976.84/1,548,440.04 = 669,267.84/x - Step 3: Cross multiply
1,121,976.84x = 1,548,440.04 × 669,267.84 - Step 4: Simplify right side
1,121,976.84x = 1,036,321,120,940.31 - Step 5: Solve for x
x = 1,036,321,120,940.31/1,121,976.84 - Step 6: Final answer
x = 923,656.43
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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.