Finding the Fourth Proportional to 656,789.49, 906,369.07 and 354,983.49
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Solution
The fourth proportional to 656,789.49, 906,369.07 and 354,983.49 is: 489,876.99
Step by Step Solution
- Step 1: Write the proportion equation
656,789.49 : 906,369.07 = 354,983.49 : x - Step 2: Convert to fraction form
656,789.49/906,369.07 = 354,983.49/x - Step 3: Cross multiply
656,789.49x = 906,369.07 × 354,983.49 - Step 4: Simplify right side
656,789.49x = 321,746,055,696.65 - Step 5: Solve for x
x = 321,746,055,696.65/656,789.49 - Step 6: Final answer
x = 489,876.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.