Finding the Fourth Proportional to 639,531.49, 882,556.28 and 353,053.93
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Solution
The fourth proportional to 639,531.49, 882,556.28 and 353,053.93 is: 487,215.98
Step by Step Solution
- Step 1: Write the proportion equation
639,531.49 : 882,556.28 = 353,053.93 : x - Step 2: Convert to fraction form
639,531.49/882,556.28 = 353,053.93/x - Step 3: Cross multiply
639,531.49x = 882,556.28 × 353,053.93 - Step 4: Simplify right side
639,531.49x = 311,589,963,100.18 - Step 5: Solve for x
x = 311,589,963,100.18/639,531.49 - Step 6: Final answer
x = 487,215.98
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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.