Finding the Fourth Proportional to 788,793.80, 1,183,190.70 and 742,137.80
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Solution
The fourth proportional to 788,793.80, 1,183,190.70 and 742,137.80 is: 1,113,206.70
Step by Step Solution
- Step 1: Write the proportion equation
788,793.80 : 1,183,190.70 = 742,137.80 : x - Step 2: Convert to fraction form
788,793.80/1,183,190.70 = 742,137.80/x - Step 3: Cross multiply
788,793.80x = 1,183,190.70 × 742,137.80 - Step 4: Simplify right side
788,793.80x = 878,090,543,078.46 - Step 5: Solve for x
x = 878,090,543,078.46/788,793.80 - Step 6: Final answer
x = 1,113,206.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.