Finding the Fourth Proportional to 878,640.84, 1,316,456.55 and 479,561.67
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Solution
The fourth proportional to 878,640.84, 1,316,456.55 and 479,561.67 is: 718,521.24
Step by Step Solution
- Step 1: Write the proportion equation
878,640.84 : 1,316,456.55 = 479,561.67 : x - Step 2: Convert to fraction form
878,640.84/1,316,456.55 = 479,561.67/x - Step 3: Cross multiply
878,640.84x = 1,316,456.55 × 479,561.67 - Step 4: Simplify right side
878,640.84x = 631,322,101,600.44 - Step 5: Solve for x
x = 631,322,101,600.44/878,640.84 - Step 6: Final answer
x = 718,521.24
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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.