Finding the Fourth Proportional to 1,512,509.37, 2,087,134.45 and 867,915.70
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Solution
The fourth proportional to 1,512,509.37, 2,087,134.45 and 867,915.70 is: 1,197,649.94
Step by Step Solution
- Step 1: Write the proportion equation
1,512,509.37 : 2,087,134.45 = 867,915.70 : x - Step 2: Convert to fraction form
1,512,509.37/2,087,134.45 = 867,915.70/x - Step 3: Cross multiply
1,512,509.37x = 2,087,134.45 × 867,915.70 - Step 4: Simplify right side
1,512,509.37x = 1,811,456,757,165.86 - Step 5: Solve for x
x = 1,811,456,757,165.86/1,512,509.37 - Step 6: Final answer
x = 1,197,649.94
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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.