Finding the Fourth Proportional to 748,684.38, 1,122,903.54 and 268,812.84
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Solution
The fourth proportional to 748,684.38, 1,122,903.54 and 268,812.84 is: 403,175.09
Step by Step Solution
- Step 1: Write the proportion equation
748,684.38 : 1,122,903.54 = 268,812.84 : x - Step 2: Convert to fraction form
748,684.38/1,122,903.54 = 268,812.84/x - Step 3: Cross multiply
748,684.38x = 1,122,903.54 × 268,812.84 - Step 4: Simplify right side
748,684.38x = 301,850,889,633.45 - Step 5: Solve for x
x = 301,850,889,633.45/748,684.38 - Step 6: Final answer
x = 403,175.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.