Finding the Fourth Proportional to 1,269,794.28, 1,752,366.60 and 696,855.12
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Solution
The fourth proportional to 1,269,794.28, 1,752,366.60 and 696,855.12 is: 961,687.78
Step by Step Solution
- Step 1: Write the proportion equation
1,269,794.28 : 1,752,366.60 = 696,855.12 : x - Step 2: Convert to fraction form
1,269,794.28/1,752,366.60 = 696,855.12/x - Step 3: Cross multiply
1,269,794.28x = 1,752,366.60 × 696,855.12 - Step 4: Simplify right side
1,269,794.28x = 1,221,145,637,326.99 - Step 5: Solve for x
x = 1,221,145,637,326.99/1,269,794.28 - Step 6: Final answer
x = 961,687.78
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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.