Finding the Fourth Proportional to 851,295.80, 1,276,943.70 and 809,823.80
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Solution
The fourth proportional to 851,295.80, 1,276,943.70 and 809,823.80 is: 1,214,735.70
Step by Step Solution
- Step 1: Write the proportion equation
851,295.80 : 1,276,943.70 = 809,823.80 : x - Step 2: Convert to fraction form
851,295.80/1,276,943.70 = 809,823.80/x - Step 3: Cross multiply
851,295.80x = 1,276,943.70 × 809,823.80 - Step 4: Simplify right side
851,295.80x = 1,034,099,399,520.06 - Step 5: Solve for x
x = 1,034,099,399,520.06/851,295.80 - Step 6: Final answer
x = 1,214,735.70
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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.