Finding the Fourth Proportional to 1,579,780.21, 2,180,090.13 and 854,626.24
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Solution
The fourth proportional to 1,579,780.21, 2,180,090.13 and 854,626.24 is: 1,179,380.66
Step by Step Solution
- Step 1: Write the proportion equation
1,579,780.21 : 2,180,090.13 = 854,626.24 : x - Step 2: Convert to fraction form
1,579,780.21/2,180,090.13 = 854,626.24/x - Step 3: Cross multiply
1,579,780.21x = 2,180,090.13 × 854,626.24 - Step 4: Simplify right side
1,579,780.21x = 1,863,162,230,663.01 - Step 5: Solve for x
x = 1,863,162,230,663.01/1,579,780.21 - Step 6: Final answer
x = 1,179,380.66
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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.