Finding the Fourth Proportional to 880,081.88, 1,320,572.99 and 418,980.91
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Solution
The fourth proportional to 880,081.88, 1,320,572.99 and 418,980.91 is: 628,685.68
Step by Step Solution
- Step 1: Write the proportion equation
880,081.88 : 1,320,572.99 = 418,980.91 : x - Step 2: Convert to fraction form
880,081.88/1,320,572.99 = 418,980.91/x - Step 3: Cross multiply
880,081.88x = 1,320,572.99 × 418,980.91 - Step 4: Simplify right side
880,081.88x = 553,294,870,976.72 - Step 5: Solve for x
x = 553,294,870,976.72/880,081.88 - Step 6: Final answer
x = 628,685.68
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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.