Finding the Fourth Proportional to 1,395,889.17, 1,925,836.50 and 912,737.13
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Solution
The fourth proportional to 1,395,889.17, 1,925,836.50 and 912,737.13 is: 1,259,256.48
Step by Step Solution
- Step 1: Write the proportion equation
1,395,889.17 : 1,925,836.50 = 912,737.13 : x - Step 2: Convert to fraction form
1,395,889.17/1,925,836.50 = 912,737.13/x - Step 3: Cross multiply
1,395,889.17x = 1,925,836.50 × 912,737.13 - Step 4: Simplify right side
1,395,889.17x = 1,757,782,479,859.25 - Step 5: Solve for x
x = 1,757,782,479,859.25/1,395,889.17 - Step 6: Final answer
x = 1,259,256.48
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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.