Finding the Fourth Proportional to 965,071.84, 1,332,489.36 and 643,540
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Solution
The fourth proportional to 965,071.84, 1,332,489.36 and 643,540 is: 888,545.46
Step by Step Solution
- Step 1: Write the proportion equation
965,071.84 : 1,332,489.36 = 643,540 : x - Step 2: Convert to fraction form
965,071.84/1,332,489.36 = 643,540/x - Step 3: Cross multiply
965,071.84x = 1,332,489.36 × 643,540 - Step 4: Simplify right side
965,071.84x = 857,510,202,734.40 - Step 5: Solve for x
x = 857,510,202,734.40/965,071.84 - Step 6: Final answer
x = 888,545.46
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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.