Finding the Fourth Proportional to 4,920,675.70, 7,381,013.55 and 3,660,963.70
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Solution
The fourth proportional to 4,920,675.70, 7,381,013.55 and 3,660,963.70 is: 5,491,445.55
Step by Step Solution
- Step 1: Write the proportion equation
4,920,675.70 : 7,381,013.55 = 3,660,963.70 : x - Step 2: Convert to fraction form
4,920,675.70/7,381,013.55 = 3,660,963.70/x - Step 3: Cross multiply
4,920,675.70x = 7,381,013.55 × 3,660,963.70 - Step 4: Simplify right side
4,920,675.70x = 27,021,622,675,758.14 - Step 5: Solve for x
x = 27,021,622,675,758.14/4,920,675.70 - Step 6: Final answer
x = 5,491,445.55
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1.5x scale
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.