Finding the Fourth Proportional to 1,104,986.40, 1,657,479.60 and 1,057,747.20
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Solution
The fourth proportional to 1,104,986.40, 1,657,479.60 and 1,057,747.20 is: 1,586,620.80
Step by Step Solution
- Step 1: Write the proportion equation
1,104,986.40 : 1,657,479.60 = 1,057,747.20 : x - Step 2: Convert to fraction form
1,104,986.40/1,657,479.60 = 1,057,747.20/x - Step 3: Cross multiply
1,104,986.40x = 1,657,479.60 × 1,057,747.20 - Step 4: Simplify right side
1,104,986.40x = 1,753,194,405,957.12 - Step 5: Solve for x
x = 1,753,194,405,957.12/1,104,986.40 - Step 6: Final answer
x = 1,586,620.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.