Finding the Fourth Proportional to 870,693.12, 1,306,046.16 and 239,641.68
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Solution
The fourth proportional to 870,693.12, 1,306,046.16 and 239,641.68 is: 359,464.30
Step by Step Solution
- Step 1: Write the proportion equation
870,693.12 : 1,306,046.16 = 239,641.68 : x - Step 2: Convert to fraction form
870,693.12/1,306,046.16 = 239,641.68/x - Step 3: Cross multiply
870,693.12x = 1,306,046.16 × 239,641.68 - Step 4: Simplify right side
870,693.12x = 312,983,095,939.95 - Step 5: Solve for x
x = 312,983,095,939.95/870,693.12 - Step 6: Final answer
x = 359,464.30
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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.