Finding the Fourth Proportional to 1,542,129.34, 2,128,138.22 and 863,065.84
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Solution
The fourth proportional to 1,542,129.34, 2,128,138.22 and 863,065.84 is: 1,191,030.71
Step by Step Solution
- Step 1: Write the proportion equation
1,542,129.34 : 2,128,138.22 = 863,065.84 : x - Step 2: Convert to fraction form
1,542,129.34/2,128,138.22 = 863,065.84/x - Step 3: Cross multiply
1,542,129.34x = 2,128,138.22 × 863,065.84 - Step 4: Simplify right side
1,542,129.34x = 1,836,723,400,480.41 - Step 5: Solve for x
x = 1,836,723,400,480.41/1,542,129.34 - Step 6: Final answer
x = 1,191,030.71
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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.