Finding the Fourth Proportional to 3,306,302.20, 4,955,516.70 and 1,387,209.70
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Solution
The fourth proportional to 3,306,302.20, 4,955,516.70 and 1,387,209.70 is: 2,079,162.89
Step by Step Solution
- Step 1: Write the proportion equation
3,306,302.20 : 4,955,516.70 = 1,387,209.70 : x - Step 2: Convert to fraction form
3,306,302.20/4,955,516.70 = 1,387,209.70/x - Step 3: Cross multiply
3,306,302.20x = 4,955,516.70 × 1,387,209.70 - Step 4: Simplify right side
3,306,302.20x = 6,874,340,834,751.99 - Step 5: Solve for x
x = 6,874,340,834,751.99/3,306,302.20 - Step 6: Final answer
x = 2,079,162.89
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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.