Finding the Fourth Proportional to 870,813.12, 1,306,703.52 and 471,448
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Solution
The fourth proportional to 870,813.12, 1,306,703.52 and 471,448 is: 707,433.95
Step by Step Solution
- Step 1: Write the proportion equation
870,813.12 : 1,306,703.52 = 471,448 : x - Step 2: Convert to fraction form
870,813.12/1,306,703.52 = 471,448/x - Step 3: Cross multiply
870,813.12x = 1,306,703.52 × 471,448 - Step 4: Simplify right side
870,813.12x = 616,042,761,096.96 - Step 5: Solve for x
x = 616,042,761,096.96/870,813.12 - Step 6: Final answer
x = 707,433.95
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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.