Finding the Fourth Proportional to 1,992,374.92, 2,749,468.14 and 1,086,956.92
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Solution
The fourth proportional to 1,992,374.92, 2,749,468.14 and 1,086,956.92 is: 1,499,995.50
Step by Step Solution
- Step 1: Write the proportion equation
1,992,374.92 : 2,749,468.14 = 1,086,956.92 : x - Step 2: Convert to fraction form
1,992,374.92/2,749,468.14 = 1,086,956.92/x - Step 3: Cross multiply
1,992,374.92x = 2,749,468.14 × 1,086,956.92 - Step 4: Simplify right side
1,992,374.92x = 2,988,553,421,092.53 - Step 5: Solve for x
x = 2,988,553,421,092.53/1,992,374.92 - Step 6: Final answer
x = 1,499,995.50
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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.