Finding the Fourth Proportional to 986,611.76, 1,479,318.36 and 386,854.36
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Solution
The fourth proportional to 986,611.76, 1,479,318.36 and 386,854.36 is: 580,046.56
Step by Step Solution
- Step 1: Write the proportion equation
986,611.76 : 1,479,318.36 = 386,854.36 : x - Step 2: Convert to fraction form
986,611.76/1,479,318.36 = 386,854.36/x - Step 3: Cross multiply
986,611.76x = 1,479,318.36 × 386,854.36 - Step 4: Simplify right side
986,611.76x = 572,280,757,394.05 - Step 5: Solve for x
x = 572,280,757,394.05/986,611.76 - Step 6: Final answer
x = 580,046.56
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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.