Finding the Fourth Proportional to 423,556.73, 635,148.59 and 198,980.99
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Solution
The fourth proportional to 423,556.73, 635,148.59 and 198,980.99 is: 298,383.87
Step by Step Solution
- Step 1: Write the proportion equation
423,556.73 : 635,148.59 = 198,980.99 : x - Step 2: Convert to fraction form
423,556.73/635,148.59 = 198,980.99/x - Step 3: Cross multiply
423,556.73x = 635,148.59 × 198,980.99 - Step 4: Simplify right side
423,556.73x = 126,382,495,828.27 - Step 5: Solve for x
x = 126,382,495,828.27/423,556.73 - Step 6: Final answer
x = 298,383.87
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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.