Finding the Fourth Proportional to 2,190,890.70, 3,286,336.05 and 1,246,106.70
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Solution
The fourth proportional to 2,190,890.70, 3,286,336.05 and 1,246,106.70 is: 1,869,160.05
Step by Step Solution
- Step 1: Write the proportion equation
2,190,890.70 : 3,286,336.05 = 1,246,106.70 : x - Step 2: Convert to fraction form
2,190,890.70/3,286,336.05 = 1,246,106.70/x - Step 3: Cross multiply
2,190,890.70x = 3,286,336.05 × 1,246,106.70 - Step 4: Simplify right side
2,190,890.70x = 4,095,125,370,356.53 - Step 5: Solve for x
x = 4,095,125,370,356.53/2,190,890.70 - Step 6: Final answer
x = 1,869,160.05
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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.