Finding the Fourth Proportional to 639,592.80, 882,639.37 and 353,113.44
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Solution
The fourth proportional to 639,592.80, 882,639.37 and 353,113.44 is: 487,297.27
Step by Step Solution
- Step 1: Write the proportion equation
639,592.80 : 882,639.37 = 353,113.44 : x - Step 2: Convert to fraction form
639,592.80/882,639.37 = 353,113.44/x - Step 3: Cross multiply
639,592.80x = 882,639.37 × 353,113.44 - Step 4: Simplify right side
639,592.80x = 311,671,824,220.13 - Step 5: Solve for x
x = 311,671,824,220.13/639,592.80 - Step 6: Final answer
x = 487,297.27
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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.