Finding the Fourth Proportional to 1,203,980.68, 1,661,512.02 and 660,166.12
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Solution
The fourth proportional to 1,203,980.68, 1,661,512.02 and 660,166.12 is: 911,039.49
Step by Step Solution
- Step 1: Write the proportion equation
1,203,980.68 : 1,661,512.02 = 660,166.12 : x - Step 2: Convert to fraction form
1,203,980.68/1,661,512.02 = 660,166.12/x - Step 3: Cross multiply
1,203,980.68x = 1,661,512.02 × 660,166.12 - Step 4: Simplify right side
1,203,980.68x = 1,096,873,943,576.76 - Step 5: Solve for x
x = 1,096,873,943,576.76/1,203,980.68 - Step 6: Final answer
x = 911,039.49
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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.