Finding the Fourth Proportional to 675,901.28, 932,639.36 and 389,365.28
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Solution
The fourth proportional to 675,901.28, 932,639.36 and 389,365.28 is: 537,263.94
Step by Step Solution
- Step 1: Write the proportion equation
675,901.28 : 932,639.36 = 389,365.28 : x - Step 2: Convert to fraction form
675,901.28/932,639.36 = 389,365.28/x - Step 3: Cross multiply
675,901.28x = 932,639.36 × 389,365.28 - Step 4: Simplify right side
675,901.28x = 363,137,385,545.42 - Step 5: Solve for x
x = 363,137,385,545.42/675,901.28 - Step 6: Final answer
x = 537,263.94
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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.