Finding the Fourth Proportional to 1,432,240.47, 1,976,452.38 and 787,660.65
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Solution
The fourth proportional to 1,432,240.47, 1,976,452.38 and 787,660.65 is: 1,086,949.99
Step by Step Solution
- Step 1: Write the proportion equation
1,432,240.47 : 1,976,452.38 = 787,660.65 : x - Step 2: Convert to fraction form
1,432,240.47/1,976,452.38 = 787,660.65/x - Step 3: Cross multiply
1,432,240.47x = 1,976,452.38 × 787,660.65 - Step 4: Simplify right side
1,432,240.47x = 1,556,773,766,324.85 - Step 5: Solve for x
x = 1,556,773,766,324.85/1,432,240.47 - Step 6: Final answer
x = 1,086,949.99
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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.