Finding the Fourth Proportional to 1,428,532.04, 1,971,435.84 and 855,462.44
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Solution
The fourth proportional to 1,428,532.04, 1,971,435.84 and 855,462.44 is: 1,180,575.07
Step by Step Solution
- Step 1: Write the proportion equation
1,428,532.04 : 1,971,435.84 = 855,462.44 : x - Step 2: Convert to fraction form
1,428,532.04/1,971,435.84 = 855,462.44/x - Step 3: Cross multiply
1,428,532.04x = 1,971,435.84 × 855,462.44 - Step 4: Simplify right side
1,428,532.04x = 1,686,489,313,989.85 - Step 5: Solve for x
x = 1,686,489,313,989.85/1,428,532.04 - Step 6: Final answer
x = 1,180,575.07
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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.