Finding the Fourth Proportional to 813,048.14, 1,122,015.36 and 450,477.68
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Solution
The fourth proportional to 813,048.14, 1,122,015.36 and 450,477.68 is: 621,664.14
Step by Step Solution
- Step 1: Write the proportion equation
813,048.14 : 1,122,015.36 = 450,477.68 : x - Step 2: Convert to fraction form
813,048.14/1,122,015.36 = 450,477.68/x - Step 3: Cross multiply
813,048.14x = 1,122,015.36 × 450,477.68 - Step 4: Simplify right side
813,048.14x = 505,442,870,687.09 - Step 5: Solve for x
x = 505,442,870,687.09/813,048.14 - Step 6: Final answer
x = 621,664.14
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1.5x scale
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.