Finding the Fourth Proportional to 957,639.10, 1,321,545.96 and 527,909.80
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Solution
The fourth proportional to 957,639.10, 1,321,545.96 and 527,909.80 is: 728,517.72
Step by Step Solution
- Step 1: Write the proportion equation
957,639.10 : 1,321,545.96 = 527,909.80 : x - Step 2: Convert to fraction form
957,639.10/1,321,545.96 = 527,909.80/x - Step 3: Cross multiply
957,639.10x = 1,321,545.96 × 527,909.80 - Step 4: Simplify right side
957,639.10x = 697,657,054,187.13 - Step 5: Solve for x
x = 697,657,054,187.13/957,639.10 - Step 6: Final answer
x = 728,517.72
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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.