Finding the Fourth Proportional to 1,282,659.74, 1,920,153.84 and 775,686.41
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Solution
The fourth proportional to 1,282,659.74, 1,920,153.84 and 775,686.41 is: 1,161,209.94
Step by Step Solution
- Step 1: Write the proportion equation
1,282,659.74 : 1,920,153.84 = 775,686.41 : x - Step 2: Convert to fraction form
1,282,659.74/1,920,153.84 = 775,686.41/x - Step 3: Cross multiply
1,282,659.74x = 1,920,153.84 × 775,686.41 - Step 4: Simplify right side
1,282,659.74x = 1,489,437,229,196.55 - Step 5: Solve for x
x = 1,489,437,229,196.55/1,282,659.74 - Step 6: Final answer
x = 1,161,209.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.