Finding the Fourth Proportional to 855,987.12, 1,181,261.16 and 474,013.44
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Solution
The fourth proportional to 855,987.12, 1,181,261.16 and 474,013.44 is: 654,137.96
Step by Step Solution
- Step 1: Write the proportion equation
855,987.12 : 1,181,261.16 = 474,013.44 : x - Step 2: Convert to fraction form
855,987.12/1,181,261.16 = 474,013.44/x - Step 3: Cross multiply
855,987.12x = 1,181,261.16 × 474,013.44 - Step 4: Simplify right side
855,987.12x = 559,933,665,989.99 - Step 5: Solve for x
x = 559,933,665,989.99/855,987.12 - Step 6: Final answer
x = 654,137.96
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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.