Finding the Fourth Proportional to 810,741.95, 1,118,807.40 and 448,181.09
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Solution
The fourth proportional to 810,741.95, 1,118,807.40 and 448,181.09 is: 618,480.79
Step by Step Solution
- Step 1: Write the proportion equation
810,741.95 : 1,118,807.40 = 448,181.09 : x - Step 2: Convert to fraction form
810,741.95/1,118,807.40 = 448,181.09/x - Step 3: Cross multiply
810,741.95x = 1,118,807.40 × 448,181.09 - Step 4: Simplify right side
810,741.95x = 501,428,320,032.07 - Step 5: Solve for x
x = 501,428,320,032.07/810,741.95 - Step 6: Final answer
x = 618,480.79
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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.