Finding the Fourth Proportional to 898,936.11, 1,240,536.06 and 491,043.60
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Solution
The fourth proportional to 898,936.11, 1,240,536.06 and 491,043.60 is: 677,642.48
Step by Step Solution
- Step 1: Write the proportion equation
898,936.11 : 1,240,536.06 = 491,043.60 : x - Step 2: Convert to fraction form
898,936.11/1,240,536.06 = 491,043.60/x - Step 3: Cross multiply
898,936.11x = 1,240,536.06 × 491,043.60 - Step 4: Simplify right side
898,936.11x = 609,157,292,832.22 - Step 5: Solve for x
x = 609,157,292,832.22/898,936.11 - Step 6: Final answer
x = 677,642.48
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1.5x scale
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.