Finding the Fourth Proportional to 1,288,303.97, 1,923,780.43 and 1,052,115.17
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Solution
The fourth proportional to 1,288,303.97, 1,923,780.43 and 1,052,115.17 is: 1,571,087.74
Step by Step Solution
- Step 1: Write the proportion equation
1,288,303.97 : 1,923,780.43 = 1,052,115.17 : x - Step 2: Convert to fraction form
1,288,303.97/1,923,780.43 = 1,052,115.17/x - Step 3: Cross multiply
1,288,303.97x = 1,923,780.43 × 1,052,115.17 - Step 4: Simplify right side
1,288,303.97x = 2,024,038,568,891.55 - Step 5: Solve for x
x = 2,024,038,568,891.55/1,288,303.97 - Step 6: Final answer
x = 1,571,087.74
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.