Finding the Fourth Proportional to 1,542,925.74, 2,128,776.84 and 998,198.70
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Solution
The fourth proportional to 1,542,925.74, 2,128,776.84 and 998,198.70 is: 1,377,216.17
Step by Step Solution
- Step 1: Write the proportion equation
1,542,925.74 : 2,128,776.84 = 998,198.70 : x - Step 2: Convert to fraction form
1,542,925.74/2,128,776.84 = 998,198.70/x - Step 3: Cross multiply
1,542,925.74x = 2,128,776.84 × 998,198.70 - Step 4: Simplify right side
1,542,925.74x = 2,124,942,274,278.11 - Step 5: Solve for x
x = 2,124,942,274,278.11/1,542,925.74 - Step 6: Final answer
x = 1,377,216.17
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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.