Finding the Fourth Proportional to 485,949.58, 670,743.79 and 282,066.19
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Solution
The fourth proportional to 485,949.58, 670,743.79 and 282,066.19 is: 389,328.75
Step by Step Solution
- Step 1: Write the proportion equation
485,949.58 : 670,743.79 = 282,066.19 : x - Step 2: Convert to fraction form
485,949.58/670,743.79 = 282,066.19/x - Step 3: Cross multiply
485,949.58x = 670,743.79 × 282,066.19 - Step 4: Simplify right side
485,949.58x = 189,194,142,929.44 - Step 5: Solve for x
x = 189,194,142,929.44/485,949.58 - Step 6: Final answer
x = 389,328.75
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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.