Finding the Fourth Proportional to 4,947,317.87, 7,421,909.08 and 1,874,229.19
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Solution
The fourth proportional to 4,947,317.87, 7,421,909.08 and 1,874,229.19 is: 2,811,696.97
Step by Step Solution
- Step 1: Write the proportion equation
4,947,317.87 : 7,421,909.08 = 1,874,229.19 : x - Step 2: Convert to fraction form
4,947,317.87/7,421,909.08 = 1,874,229.19/x - Step 3: Cross multiply
4,947,317.87x = 7,421,909.08 × 1,874,229.19 - Step 4: Simplify right side
4,947,317.87x = 13,910,358,643,262.04 - Step 5: Solve for x
x = 13,910,358,643,262.04/4,947,317.87 - Step 6: Final answer
x = 2,811,696.97
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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.