Finding the Fourth Proportional to 811,740.84, 1,120,203.66 and 449,179.98
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Solution
The fourth proportional to 811,740.84, 1,120,203.66 and 449,179.98 is: 619,869.09
Step by Step Solution
- Step 1: Write the proportion equation
811,740.84 : 1,120,203.66 = 449,179.98 : x - Step 2: Convert to fraction form
811,740.84/1,120,203.66 = 449,179.98/x - Step 3: Cross multiply
811,740.84x = 1,120,203.66 × 449,179.98 - Step 4: Simplify right side
811,740.84x = 503,173,057,594.73 - Step 5: Solve for x
x = 503,173,057,594.73/811,740.84 - Step 6: Final answer
x = 619,869.09
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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.