Finding the Fourth Proportional to 519,912.14, 717,465.52 and 290,471.14
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Solution
The fourth proportional to 519,912.14, 717,465.52 and 290,471.14 is: 400,842.78
Step by Step Solution
- Step 1: Write the proportion equation
519,912.14 : 717,465.52 = 290,471.14 : x - Step 2: Convert to fraction form
519,912.14/717,465.52 = 290,471.14/x - Step 3: Cross multiply
519,912.14x = 717,465.52 × 290,471.14 - Step 4: Simplify right side
519,912.14x = 208,403,027,505.09 - Step 5: Solve for x
x = 208,403,027,505.09/519,912.14 - Step 6: Final answer
x = 400,842.78
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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.