Finding the Fourth Proportional to 1,292,624.43, 1,937,121.77 and 1,021,560.82
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Solution
The fourth proportional to 1,292,624.43, 1,937,121.77 and 1,021,560.82 is: 1,530,906.93
Step by Step Solution
- Step 1: Write the proportion equation
1,292,624.43 : 1,937,121.77 = 1,021,560.82 : x - Step 2: Convert to fraction form
1,292,624.43/1,937,121.77 = 1,021,560.82/x - Step 3: Cross multiply
1,292,624.43x = 1,937,121.77 × 1,021,560.82 - Step 4: Simplify right side
1,292,624.43x = 1,978,887,703,801.05 - Step 5: Solve for x
x = 1,978,887,703,801.05/1,292,624.43 - Step 6: Final answer
x = 1,530,906.93
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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.