Finding the Fourth Proportional to 1,542,220.92, 2,128,272.12 and 863,288.64
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Solution
The fourth proportional to 1,542,220.92, 2,128,272.12 and 863,288.64 is: 1,191,342.38
Step by Step Solution
- Step 1: Write the proportion equation
1,542,220.92 : 2,128,272.12 = 863,288.64 : x - Step 2: Convert to fraction form
1,542,220.92/2,128,272.12 = 863,288.64/x - Step 3: Cross multiply
1,542,220.92x = 2,128,272.12 × 863,288.64 - Step 4: Simplify right side
1,542,220.92x = 1,837,313,144,024.72 - Step 5: Solve for x
x = 1,837,313,144,024.72/1,542,220.92 - Step 6: Final answer
x = 1,191,342.38
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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.