Finding the Fourth Proportional to 4,247,815.70, 6,371,723.55 and 1,255,999.70
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Solution
The fourth proportional to 4,247,815.70, 6,371,723.55 and 1,255,999.70 is: 1,883,999.55
Step by Step Solution
- Step 1: Write the proportion equation
4,247,815.70 : 6,371,723.55 = 1,255,999.70 : x - Step 2: Convert to fraction form
4,247,815.70/6,371,723.55 = 1,255,999.70/x - Step 3: Cross multiply
4,247,815.70x = 6,371,723.55 × 1,255,999.70 - Step 4: Simplify right side
4,247,815.70x = 8,002,882,867,282.94 - Step 5: Solve for x
x = 8,002,882,867,282.94/4,247,815.70 - Step 6: Final answer
x = 1,883,999.55
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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.