Finding the Fourth Proportional to 870,815.12, 1,306,706.52 and 471,450
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Solution
The fourth proportional to 870,815.12, 1,306,706.52 and 471,450 is: 707,436.95
Step by Step Solution
- Step 1: Write the proportion equation
870,815.12 : 1,306,706.52 = 471,450 : x - Step 2: Convert to fraction form
870,815.12/1,306,706.52 = 471,450/x - Step 3: Cross multiply
870,815.12x = 1,306,706.52 × 471,450 - Step 4: Simplify right side
870,815.12x = 616,046,788,854 - Step 5: Solve for x
x = 616,046,788,854/870,815.12 - Step 6: Final answer
x = 707,436.95
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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.