Finding the Fourth Proportional to 1,237,037.28, 1,855,757.61 and 438,145.62
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Solution
The fourth proportional to 1,237,037.28, 1,855,757.61 and 438,145.62 is: 657,289.87
Step by Step Solution
- Step 1: Write the proportion equation
1,237,037.28 : 1,855,757.61 = 438,145.62 : x - Step 2: Convert to fraction form
1,237,037.28/1,855,757.61 = 438,145.62/x - Step 3: Cross multiply
1,237,037.28x = 1,855,757.61 × 438,145.62 - Step 4: Simplify right side
1,237,037.28x = 813,092,068,603.17 - Step 5: Solve for x
x = 813,092,068,603.17/1,237,037.28 - Step 6: Final answer
x = 657,289.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.