Finding the Fourth Proportional to 1,390,826.43, 2,086,239.65 and 759,395.79
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Solution
The fourth proportional to 1,390,826.43, 2,086,239.65 and 759,395.79 is: 1,139,093.69
Step by Step Solution
- Step 1: Write the proportion equation
1,390,826.43 : 2,086,239.65 = 759,395.79 : x - Step 2: Convert to fraction form
1,390,826.43/2,086,239.65 = 759,395.79/x - Step 3: Cross multiply
1,390,826.43x = 2,086,239.65 × 759,395.79 - Step 4: Simplify right side
1,390,826.43x = 1,584,281,603,344.09 - Step 5: Solve for x
x = 1,584,281,603,344.09/1,390,826.43 - Step 6: Final answer
x = 1,139,093.69
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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.