Finding the Fourth Proportional to 920,775.84, 1,381,163.76 and 868,797.60
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Solution
The fourth proportional to 920,775.84, 1,381,163.76 and 868,797.60 is: 1,303,196.40
Step by Step Solution
- Step 1: Write the proportion equation
920,775.84 : 1,381,163.76 = 868,797.60 : x - Step 2: Convert to fraction form
920,775.84/1,381,163.76 = 868,797.60/x - Step 3: Cross multiply
920,775.84x = 1,381,163.76 × 868,797.60 - Step 4: Simplify right side
920,775.84x = 1,199,951,759,894.98 - Step 5: Solve for x
x = 1,199,951,759,894.98/920,775.84 - Step 6: Final answer
x = 1,303,196.40
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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.