Finding the Fourth Proportional to 1,331,452.62, 1,837,402.11 and 727,840.62
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Solution
The fourth proportional to 1,331,452.62, 1,837,402.11 and 727,840.62 is: 1,004,418.69
Step by Step Solution
- Step 1: Write the proportion equation
1,331,452.62 : 1,837,402.11 = 727,840.62 : x - Step 2: Convert to fraction form
1,331,452.62/1,837,402.11 = 727,840.62/x - Step 3: Cross multiply
1,331,452.62x = 1,837,402.11 × 727,840.62 - Step 4: Simplify right side
1,331,452.62x = 1,337,335,890,931.71 - Step 5: Solve for x
x = 1,337,335,890,931.71/1,331,452.62 - Step 6: Final answer
x = 1,004,418.69
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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.