Finding the Fourth Proportional to 1,330,489.44, 1,996,521.50 and 489,631.68
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Solution
The fourth proportional to 1,330,489.44, 1,996,521.50 and 489,631.68 is: 734,737.27
Step by Step Solution
- Step 1: Write the proportion equation
1,330,489.44 : 1,996,521.50 = 489,631.68 : x - Step 2: Convert to fraction form
1,330,489.44/1,996,521.50 = 489,631.68/x - Step 3: Cross multiply
1,330,489.44x = 1,996,521.50 × 489,631.68 - Step 4: Simplify right side
1,330,489.44x = 977,560,176,201.12 - Step 5: Solve for x
x = 977,560,176,201.12/1,330,489.44 - Step 6: Final answer
x = 734,737.27
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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.