Finding the Fourth Proportional to 831,668.14, 1,147,716.98 and 487,752.12
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Solution
The fourth proportional to 831,668.14, 1,147,716.98 and 487,752.12 is: 673,106.69
Step by Step Solution
- Step 1: Write the proportion equation
831,668.14 : 1,147,716.98 = 487,752.12 : x - Step 2: Convert to fraction form
831,668.14/1,147,716.98 = 487,752.12/x - Step 3: Cross multiply
831,668.14x = 1,147,716.98 × 487,752.12 - Step 4: Simplify right side
831,668.14x = 559,801,386,066.33 - Step 5: Solve for x
x = 559,801,386,066.33/831,668.14 - Step 6: Final answer
x = 673,106.69
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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.