Finding the Fourth Proportional to 1,985,911.76, 2,740,476.36 and 1,080,497.36
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Solution
The fourth proportional to 1,985,911.76, 2,740,476.36 and 1,080,497.36 is: 1,491,041.81
Step by Step Solution
- Step 1: Write the proportion equation
1,985,911.76 : 2,740,476.36 = 1,080,497.36 : x - Step 2: Convert to fraction form
1,985,911.76/2,740,476.36 = 1,080,497.36/x - Step 3: Cross multiply
1,985,911.76x = 2,740,476.36 × 1,080,497.36 - Step 4: Simplify right side
1,985,911.76x = 2,961,077,472,122.41 - Step 5: Solve for x
x = 2,961,077,472,122.41/1,985,911.76 - Step 6: Final answer
x = 1,491,041.81
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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.