Finding the Fourth Proportional to 992,730.80, 1,489,711.80 and 519,755.60
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Solution
The fourth proportional to 992,730.80, 1,489,711.80 and 519,755.60 is: 779,955.70
Step by Step Solution
- Step 1: Write the proportion equation
992,730.80 : 1,489,711.80 = 519,755.60 : x - Step 2: Convert to fraction form
992,730.80/1,489,711.80 = 519,755.60/x - Step 3: Cross multiply
992,730.80x = 1,489,711.80 × 519,755.60 - Step 4: Simplify right side
992,730.80x = 774,286,050,436.08 - Step 5: Solve for x
x = 774,286,050,436.08/992,730.80 - Step 6: Final answer
x = 779,955.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.