Finding the Fourth Proportional to 1,873,906.71, 2,811,979.90 and 1,721,449.58
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Solution
The fourth proportional to 1,873,906.71, 2,811,979.90 and 1,721,449.58 is: 2,583,203.09
Step by Step Solution
- Step 1: Write the proportion equation
1,873,906.71 : 2,811,979.90 = 1,721,449.58 : x - Step 2: Convert to fraction form
1,873,906.71/2,811,979.90 = 1,721,449.58/x - Step 3: Cross multiply
1,873,906.71x = 2,811,979.90 × 1,721,449.58 - Step 4: Simplify right side
1,873,906.71x = 4,840,681,610,004.84 - Step 5: Solve for x
x = 4,840,681,610,004.84/1,873,906.71 - Step 6: Final answer
x = 2,583,203.09
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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.