Finding the Fourth Proportional to 1,790,811.70, 2,686,217.55 and 608,859.70
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Solution
The fourth proportional to 1,790,811.70, 2,686,217.55 and 608,859.70 is: 913,289.55
Step by Step Solution
- Step 1: Write the proportion equation
1,790,811.70 : 2,686,217.55 = 608,859.70 : x - Step 2: Convert to fraction form
1,790,811.70/2,686,217.55 = 608,859.70/x - Step 3: Cross multiply
1,790,811.70x = 2,686,217.55 × 608,859.70 - Step 4: Simplify right side
1,790,811.70x = 1,635,529,611,627.74 - Step 5: Solve for x
x = 1,635,529,611,627.74/1,790,811.70 - Step 6: Final answer
x = 913,289.55
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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.