Finding the Fourth Proportional to 2,787,763.80, 3,848,465.88 and 1,869,657.12
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Solution
The fourth proportional to 2,787,763.80, 3,848,465.88 and 1,869,657.12 is: 2,581,033.46
Step by Step Solution
- Step 1: Write the proportion equation
2,787,763.80 : 3,848,465.88 = 1,869,657.12 : x - Step 2: Convert to fraction form
2,787,763.80/3,848,465.88 = 1,869,657.12/x - Step 3: Cross multiply
2,787,763.80x = 3,848,465.88 × 1,869,657.12 - Step 4: Simplify right side
2,787,763.80x = 7,195,311,633,619.07 - Step 5: Solve for x
x = 7,195,311,633,619.07/2,787,763.80 - Step 6: Final answer
x = 2,581,033.46
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.