Finding the Fourth Proportional to 1,915,120.41, 2,642,844.65 and 1,043,936.02
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Solution
The fourth proportional to 1,915,120.41, 2,642,844.65 and 1,043,936.02 is: 1,440,619.98
Step by Step Solution
- Step 1: Write the proportion equation
1,915,120.41 : 2,642,844.65 = 1,043,936.02 : x - Step 2: Convert to fraction form
1,915,120.41/2,642,844.65 = 1,043,936.02/x - Step 3: Cross multiply
1,915,120.41x = 2,642,844.65 × 1,043,936.02 - Step 4: Simplify right side
1,915,120.41x = 2,758,960,723,483.17 - Step 5: Solve for x
x = 2,758,960,723,483.17/1,915,120.41 - Step 6: Final answer
x = 1,440,619.98
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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.