Finding the Fourth Proportional to 420,696.36, 580,556.70 and 259,486.92
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Solution
The fourth proportional to 420,696.36, 580,556.70 and 259,486.92 is: 358,089.31
Step by Step Solution
- Step 1: Write the proportion equation
420,696.36 : 580,556.70 = 259,486.92 : x - Step 2: Convert to fraction form
420,696.36/580,556.70 = 259,486.92/x - Step 3: Cross multiply
420,696.36x = 580,556.70 × 259,486.92 - Step 4: Simplify right side
420,696.36x = 150,646,869,968.36 - Step 5: Solve for x
x = 150,646,869,968.36/420,696.36 - Step 6: Final answer
x = 358,089.31
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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.