Finding the Fourth Proportional to 639,334.51, 958,239.12 and 297,316.24
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Solution
The fourth proportional to 639,334.51, 958,239.12 and 297,316.24 is: 445,619.70
Step by Step Solution
- Step 1: Write the proportion equation
639,334.51 : 958,239.12 = 297,316.24 : x - Step 2: Convert to fraction form
639,334.51/958,239.12 = 297,316.24/x - Step 3: Cross multiply
639,334.51x = 958,239.12 × 297,316.24 - Step 4: Simplify right side
639,334.51x = 284,900,052,179.31 - Step 5: Solve for x
x = 284,900,052,179.31/639,334.51 - Step 6: Final answer
x = 445,619.70
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1.5x scale
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.