Finding the Fourth Proportional to 1,267,941.15, 1,749,938.22 and 784,661.99
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Solution
The fourth proportional to 1,267,941.15, 1,749,938.22 and 784,661.99 is: 1,082,944.58
Step by Step Solution
- Step 1: Write the proportion equation
1,267,941.15 : 1,749,938.22 = 784,661.99 : x - Step 2: Convert to fraction form
1,267,941.15/1,749,938.22 = 784,661.99/x - Step 3: Cross multiply
1,267,941.15x = 1,749,938.22 × 784,661.99 - Step 4: Simplify right side
1,267,941.15x = 1,373,109,997,332.57 - Step 5: Solve for x
x = 1,373,109,997,332.57/1,267,941.15 - Step 6: Final answer
x = 1,082,944.58
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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.