Finding the Fourth Proportional to 1,080,765.21, 1,621,175.61 and 512,013.09
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Solution
The fourth proportional to 1,080,765.21, 1,621,175.61 and 512,013.09 is: 768,032.80
Step by Step Solution
- Step 1: Write the proportion equation
1,080,765.21 : 1,621,175.61 = 512,013.09 : x - Step 2: Convert to fraction form
1,080,765.21/1,621,175.61 = 512,013.09/x - Step 3: Cross multiply
1,080,765.21x = 1,621,175.61 × 512,013.09 - Step 4: Simplify right side
1,080,765.21x = 830,063,133,508.74 - Step 5: Solve for x
x = 830,063,133,508.74/1,080,765.21 - Step 6: Final answer
x = 768,032.80
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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.