Finding the Fourth Proportional to 1,434,668.04, 1,979,766.09 and 822,789.18
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Solution
The fourth proportional to 1,434,668.04, 1,979,766.09 and 822,789.18 is: 1,135,405.59
Step by Step Solution
- Step 1: Write the proportion equation
1,434,668.04 : 1,979,766.09 = 822,789.18 : x - Step 2: Convert to fraction form
1,434,668.04/1,979,766.09 = 822,789.18/x - Step 3: Cross multiply
1,434,668.04x = 1,979,766.09 × 822,789.18 - Step 4: Simplify right side
1,434,668.04x = 1,628,930,117,782.91 - Step 5: Solve for x
x = 1,628,930,117,782.91/1,434,668.04 - Step 6: Final answer
x = 1,135,405.59
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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.