Finding the Fourth Proportional to 790,776.11, 1,091,227.87 and 468,515.99
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Solution
The fourth proportional to 790,776.11, 1,091,227.87 and 468,515.99 is: 646,526.49
Step by Step Solution
- Step 1: Write the proportion equation
790,776.11 : 1,091,227.87 = 468,515.99 : x - Step 2: Convert to fraction form
790,776.11/1,091,227.87 = 468,515.99/x - Step 3: Cross multiply
790,776.11x = 1,091,227.87 × 468,515.99 - Step 4: Simplify right side
790,776.11x = 511,257,705,828.64 - Step 5: Solve for x
x = 511,257,705,828.64/790,776.11 - Step 6: Final answer
x = 646,526.49
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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.