Finding the Fourth Proportional to 1,324,867.60, 1,828,324.20 and 721,259.92
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Solution
The fourth proportional to 1,324,867.60, 1,828,324.20 and 721,259.92 is: 995,342.45
Step by Step Solution
- Step 1: Write the proportion equation
1,324,867.60 : 1,828,324.20 = 721,259.92 : x - Step 2: Convert to fraction form
1,324,867.60/1,828,324.20 = 721,259.92/x - Step 3: Cross multiply
1,324,867.60x = 1,828,324.20 × 721,259.92 - Step 4: Simplify right side
1,324,867.60x = 1,318,696,966,226.06 - Step 5: Solve for x
x = 1,318,696,966,226.06/1,324,867.60 - Step 6: Final answer
x = 995,342.45
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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.