Finding the Fourth Proportional to 2,261,301.57, 3,120,715.76 and 1,281,430.80
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Solution
The fourth proportional to 2,261,301.57, 3,120,715.76 and 1,281,430.80 is: 1,768,442.27
Step by Step Solution
- Step 1: Write the proportion equation
2,261,301.57 : 3,120,715.76 = 1,281,430.80 : x - Step 2: Convert to fraction form
2,261,301.57/3,120,715.76 = 1,281,430.80/x - Step 3: Cross multiply
2,261,301.57x = 3,120,715.76 × 1,281,430.80 - Step 4: Simplify right side
2,261,301.57x = 3,998,981,286,502.25 - Step 5: Solve for x
x = 3,998,981,286,502.25/2,261,301.57 - Step 6: Final answer
x = 1,768,442.27
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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.