Finding the Fourth Proportional to 459,087.05, 643,246.75 and 459,087.05
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Solution
The fourth proportional to 459,087.05, 643,246.75 and 459,087.05 is: 643,246.75
Step by Step Solution
- Step 1: Write the proportion equation
459,087.05 : 643,246.75 = 459,087.05 : x - Step 2: Convert to fraction form
459,087.05/643,246.75 = 459,087.05/x - Step 3: Cross multiply
459,087.05x = 643,246.75 × 459,087.05 - Step 4: Simplify right side
459,087.05x = 295,306,252,879.59 - Step 5: Solve for x
x = 295,306,252,879.59/459,087.05 - Step 6: Final answer
x = 643,246.75
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.