Finding the Fourth Proportional to 420,350.62, 580,096.64 and 239,088.62
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Solution
The fourth proportional to 420,350.62, 580,096.64 and 239,088.62 is: 329,949.56
Step by Step Solution
- Step 1: Write the proportion equation
420,350.62 : 580,096.64 = 239,088.62 : x - Step 2: Convert to fraction form
420,350.62/580,096.64 = 239,088.62/x - Step 3: Cross multiply
420,350.62x = 580,096.64 × 239,088.62 - Step 4: Simplify right side
420,350.62x = 138,694,501,028.31 - Step 5: Solve for x
x = 138,694,501,028.31/420,350.62 - Step 6: Final answer
x = 329,949.56
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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.