Finding the Fourth Proportional to 1,521,573.66, 2,099,745.99 and 842,495.58
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Solution
The fourth proportional to 1,521,573.66, 2,099,745.99 and 842,495.58 is: 1,162,629.69
Step by Step Solution
- Step 1: Write the proportion equation
1,521,573.66 : 2,099,745.99 = 842,495.58 : x - Step 2: Convert to fraction form
1,521,573.66/2,099,745.99 = 842,495.58/x - Step 3: Cross multiply
1,521,573.66x = 2,099,745.99 × 842,495.58 - Step 4: Simplify right side
1,521,573.66x = 1,769,026,715,697.72 - Step 5: Solve for x
x = 1,769,026,715,697.72/1,521,573.66 - Step 6: Final answer
x = 1,162,629.69
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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.