Finding the Fourth Proportional to 2,178,102.44, 3,005,340.90 and 1,272,509.48
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Solution
The fourth proportional to 2,178,102.44, 3,005,340.90 and 1,272,509.48 is: 1,755,805.75
Step by Step Solution
- Step 1: Write the proportion equation
2,178,102.44 : 3,005,340.90 = 1,272,509.48 : x - Step 2: Convert to fraction form
2,178,102.44/3,005,340.90 = 1,272,509.48/x - Step 3: Cross multiply
2,178,102.44x = 3,005,340.90 × 1,272,509.48 - Step 4: Simplify right side
2,178,102.44x = 3,824,324,785,881.73 - Step 5: Solve for x
x = 3,824,324,785,881.73/2,178,102.44 - Step 6: Final answer
x = 1,755,805.75
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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.