Finding the Fourth Proportional to 1,542,357.11, 2,128,711.88 and 898,157.13
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Solution
The fourth proportional to 1,542,357.11, 2,128,711.88 and 898,157.13 is: 1,239,607.70
Step by Step Solution
- Step 1: Write the proportion equation
1,542,357.11 : 2,128,711.88 = 898,157.13 : x - Step 2: Convert to fraction form
1,542,357.11/2,128,711.88 = 898,157.13/x - Step 3: Cross multiply
1,542,357.11x = 2,128,711.88 × 898,157.13 - Step 4: Simplify right side
1,542,357.11x = 1,911,917,747,000.43 - Step 5: Solve for x
x = 1,911,917,747,000.43/1,542,357.11 - Step 6: Final answer
x = 1,239,607.70
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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.