Finding the Fourth Proportional to 1,018,742.05, 1,528,163.83 and 387,704.77
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Solution
The fourth proportional to 1,018,742.05, 1,528,163.83 and 387,704.77 is: 581,576.47
Step by Step Solution
- Step 1: Write the proportion equation
1,018,742.05 : 1,528,163.83 = 387,704.77 : x - Step 2: Convert to fraction form
1,018,742.05/1,528,163.83 = 387,704.77/x - Step 3: Cross multiply
1,018,742.05x = 1,528,163.83 × 387,704.77 - Step 4: Simplify right side
1,018,742.05x = 592,476,402,896.69 - Step 5: Solve for x
x = 592,476,402,896.69/1,018,742.05 - Step 6: Final answer
x = 581,576.47
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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.