Finding the Fourth Proportional to 478,783.18, 660,691.11 and 263,912.14
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Solution
The fourth proportional to 478,783.18, 660,691.11 and 263,912.14 is: 364,182.39
Step by Step Solution
- Step 1: Write the proportion equation
478,783.18 : 660,691.11 = 263,912.14 : x - Step 2: Convert to fraction form
478,783.18/660,691.11 = 263,912.14/x - Step 3: Cross multiply
478,783.18x = 660,691.11 × 263,912.14 - Step 4: Simplify right side
478,783.18x = 174,364,404,719.08 - Step 5: Solve for x
x = 174,364,404,719.08/478,783.18 - Step 6: Final answer
x = 364,182.39
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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.