Finding the Fourth Proportional to 861,395.44, 1,292,297.64 and 270,419.44
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Solution
The fourth proportional to 861,395.44, 1,292,297.64 and 270,419.44 is: 405,693.35
Step by Step Solution
- Step 1: Write the proportion equation
861,395.44 : 1,292,297.64 = 270,419.44 : x - Step 2: Convert to fraction form
861,395.44/1,292,297.64 = 270,419.44/x - Step 3: Cross multiply
861,395.44x = 1,292,297.64 × 270,419.44 - Step 4: Simplify right side
861,395.44x = 349,462,404,122.12 - Step 5: Solve for x
x = 349,462,404,122.12/861,395.44 - Step 6: Final answer
x = 405,693.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.