Finding the Fourth Proportional to 807,996.87, 1,115,043.20 and 445,433.70
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Solution
The fourth proportional to 807,996.87, 1,115,043.20 and 445,433.70 is: 614,702.65
Step by Step Solution
- Step 1: Write the proportion equation
807,996.87 : 1,115,043.20 = 445,433.70 : x - Step 2: Convert to fraction form
807,996.87/1,115,043.20 = 445,433.70/x - Step 3: Cross multiply
807,996.87x = 1,115,043.20 × 445,433.70 - Step 4: Simplify right side
807,996.87x = 496,677,817,470.71 - Step 5: Solve for x
x = 496,677,817,470.71/807,996.87 - Step 6: Final answer
x = 614,702.65
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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.