Finding the Fourth Proportional to 1,131,023.08, 1,560,772.26 and 621,721.80
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Solution
The fourth proportional to 1,131,023.08, 1,560,772.26 and 621,721.80 is: 857,954.32
Step by Step Solution
- Step 1: Write the proportion equation
1,131,023.08 : 1,560,772.26 = 621,721.80 : x - Step 2: Convert to fraction form
1,131,023.08/1,560,772.26 = 621,721.80/x - Step 3: Cross multiply
1,131,023.08x = 1,560,772.26 × 621,721.80 - Step 4: Simplify right side
1,131,023.08x = 970,366,138,877.27 - Step 5: Solve for x
x = 970,366,138,877.27/1,131,023.08 - Step 6: Final answer
x = 857,954.32
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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.