Finding the Fourth Proportional to 776,858.68, 1,072,118.87 and 470,947.96
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Solution
The fourth proportional to 776,858.68, 1,072,118.87 and 470,947.96 is: 649,940.86
Step by Step Solution
- Step 1: Write the proportion equation
776,858.68 : 1,072,118.87 = 470,947.96 : x - Step 2: Convert to fraction form
776,858.68/1,072,118.87 = 470,947.96/x - Step 3: Cross multiply
776,858.68x = 1,072,118.87 × 470,947.96 - Step 4: Simplify right side
776,858.68x = 504,912,194,704.01 - Step 5: Solve for x
x = 504,912,194,704.01/776,858.68 - Step 6: Final answer
x = 649,940.86
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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.