Finding the Fourth Proportional to 1,587,117.54, 2,188,955.97 and 1,043,811.18
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Solution
The fourth proportional to 1,587,117.54, 2,188,955.97 and 1,043,811.18 is: 1,439,626.67
Step by Step Solution
- Step 1: Write the proportion equation
1,587,117.54 : 2,188,955.97 = 1,043,811.18 : x - Step 2: Convert to fraction form
1,587,117.54/2,188,955.97 = 1,043,811.18/x - Step 3: Cross multiply
1,587,117.54x = 2,188,955.97 × 1,043,811.18 - Step 4: Simplify right side
1,587,117.54x = 2,284,856,726,136.62 - Step 5: Solve for x
x = 2,284,856,726,136.62/1,587,117.54 - Step 6: Final answer
x = 1,439,626.67
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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.