Finding the Fourth Proportional to 639,176.49, 958,453.70 and 339,800.49
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Solution
The fourth proportional to 639,176.49, 958,453.70 and 339,800.49 is: 509,535.38
Step by Step Solution
- Step 1: Write the proportion equation
639,176.49 : 958,453.70 = 339,800.49 : x - Step 2: Convert to fraction form
639,176.49/958,453.70 = 339,800.49/x - Step 3: Cross multiply
639,176.49x = 958,453.70 × 339,800.49 - Step 4: Simplify right side
639,176.49x = 325,683,035,203.31 - Step 5: Solve for x
x = 325,683,035,203.31/639,176.49 - Step 6: Final answer
x = 509,535.38
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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.