Finding the Fourth Proportional to 1,211,132.70, 1,813,199.85 and 738,740.70
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Solution
The fourth proportional to 1,211,132.70, 1,813,199.85 and 738,740.70 is: 1,105,976.68
Step by Step Solution
- Step 1: Write the proportion equation
1,211,132.70 : 1,813,199.85 = 738,740.70 : x - Step 2: Convert to fraction form
1,211,132.70/1,813,199.85 = 738,740.70/x - Step 3: Cross multiply
1,211,132.70x = 1,813,199.85 × 738,740.70 - Step 4: Simplify right side
1,211,132.70x = 1,339,484,526,428.90 - Step 5: Solve for x
x = 1,339,484,526,428.90/1,211,132.70 - Step 6: Final answer
x = 1,105,976.68
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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.