Finding the Fourth Proportional to 1,432,236.97, 1,976,447.55 and 787,657.15
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Solution
The fourth proportional to 1,432,236.97, 1,976,447.55 and 787,657.15 is: 1,086,945.16
Step by Step Solution
- Step 1: Write the proportion equation
1,432,236.97 : 1,976,447.55 = 787,657.15 : x - Step 2: Convert to fraction form
1,432,236.97/1,976,447.55 = 787,657.15/x - Step 3: Cross multiply
1,432,236.97x = 1,976,447.55 × 787,657.15 - Step 4: Simplify right side
1,432,236.97x = 1,556,763,044,357.48 - Step 5: Solve for x
x = 1,556,763,044,357.48/1,432,236.97 - Step 6: Final answer
x = 1,086,945.16
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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.