Finding the Fourth Proportional to 1,102,414.52, 1,521,374.70 and 612,421.14
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Solution
The fourth proportional to 1,102,414.52, 1,521,374.70 and 612,421.14 is: 845,164.88
Step by Step Solution
- Step 1: Write the proportion equation
1,102,414.52 : 1,521,374.70 = 612,421.14 : x - Step 2: Convert to fraction form
1,102,414.52/1,521,374.70 = 612,421.14/x - Step 3: Cross multiply
1,102,414.52x = 1,521,374.70 × 612,421.14 - Step 4: Simplify right side
1,102,414.52x = 931,722,028,141.16 - Step 5: Solve for x
x = 931,722,028,141.16/1,102,414.52 - Step 6: Final answer
x = 845,164.88
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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.