Finding the Fourth Proportional to 4,920,348.12, 7,380,478.26 and 1,554,555
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Solution
The fourth proportional to 4,920,348.12, 7,380,478.26 and 1,554,555 is: 2,331,818.62
Step by Step Solution
- Step 1: Write the proportion equation
4,920,348.12 : 7,380,478.26 = 1,554,555 : x - Step 2: Convert to fraction form
4,920,348.12/7,380,478.26 = 1,554,555/x - Step 3: Cross multiply
4,920,348.12x = 7,380,478.26 × 1,554,555 - Step 4: Simplify right side
4,920,348.12x = 11,473,359,381,474.30 - Step 5: Solve for x
x = 11,473,359,381,474.30/4,920,348.12 - Step 6: Final answer
x = 2,331,818.62
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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.