Finding the Fourth Proportional to 813,052.51, 1,122,402.49 and 571,542.10
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Solution
The fourth proportional to 813,052.51, 1,122,402.49 and 571,542.10 is: 789,002.27
Step by Step Solution
- Step 1: Write the proportion equation
813,052.51 : 1,122,402.49 = 571,542.10 : x - Step 2: Convert to fraction form
813,052.51/1,122,402.49 = 571,542.10/x - Step 3: Cross multiply
813,052.51x = 1,122,402.49 × 571,542.10 - Step 4: Simplify right side
813,052.51x = 641,500,271,944.97 - Step 5: Solve for x
x = 641,500,271,944.97/813,052.51 - Step 6: Final answer
x = 789,002.27
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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.