Finding the Fourth Proportional to 1,420,501.24, 1,960,216.77 and 775,912.15
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Solution
The fourth proportional to 1,420,501.24, 1,960,216.77 and 775,912.15 is: 1,070,717.83
Step by Step Solution
- Step 1: Write the proportion equation
1,420,501.24 : 1,960,216.77 = 775,912.15 : x - Step 2: Convert to fraction form
1,420,501.24/1,960,216.77 = 775,912.15/x - Step 3: Cross multiply
1,420,501.24x = 1,960,216.77 × 775,912.15 - Step 4: Simplify right side
1,420,501.24x = 1,520,956,008,476.76 - Step 5: Solve for x
x = 1,520,956,008,476.76/1,420,501.24 - Step 6: Final answer
x = 1,070,717.83
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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.