Finding the Fourth Proportional to 1,920,265.62, 2,880,813.61 and 1,021,576.74
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Solution
The fourth proportional to 1,920,265.62, 2,880,813.61 and 1,021,576.74 is: 1,532,585.98
Step by Step Solution
- Step 1: Write the proportion equation
1,920,265.62 : 2,880,813.61 = 1,021,576.74 : x - Step 2: Convert to fraction form
1,920,265.62/2,880,813.61 = 1,021,576.74/x - Step 3: Cross multiply
1,920,265.62x = 2,880,813.61 × 1,021,576.74 - Step 4: Simplify right side
1,920,265.62x = 2,942,972,176,251.43 - Step 5: Solve for x
x = 2,942,972,176,251.43/1,920,265.62 - Step 6: Final answer
x = 1,532,585.98
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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.