Finding the Fourth Proportional to 1,038,661.28, 1,433,348.70 and 579,771.85
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Solution
The fourth proportional to 1,038,661.28, 1,433,348.70 and 579,771.85 is: 800,082.99
Step by Step Solution
- Step 1: Write the proportion equation
1,038,661.28 : 1,433,348.70 = 579,771.85 : x - Step 2: Convert to fraction form
1,038,661.28/1,433,348.70 = 579,771.85/x - Step 3: Cross multiply
1,038,661.28x = 1,433,348.70 × 579,771.85 - Step 4: Simplify right side
1,038,661.28x = 831,015,227,494.10 - Step 5: Solve for x
x = 831,015,227,494.10/1,038,661.28 - Step 6: Final answer
x = 800,082.99
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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.