Finding the Fourth Proportional to 899,283.96, 1,240,974.84 and 491,399.80
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Solution
The fourth proportional to 899,283.96, 1,240,974.84 and 491,399.80 is: 678,111.49
Step by Step Solution
- Step 1: Write the proportion equation
899,283.96 : 1,240,974.84 = 491,399.80 : x - Step 2: Convert to fraction form
899,283.96/1,240,974.84 = 491,399.80/x - Step 3: Cross multiply
899,283.96x = 1,240,974.84 × 491,399.80 - Step 4: Simplify right side
899,283.96x = 609,814,788,181.03 - Step 5: Solve for x
x = 609,814,788,181.03/899,283.96 - Step 6: Final answer
x = 678,111.49
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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.