Finding the Fourth Proportional to 639,609.88, 959,239.68 and 240,219.76
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Solution
The fourth proportional to 639,609.88, 959,239.68 and 240,219.76 is: 360,263.86
Step by Step Solution
- Step 1: Write the proportion equation
639,609.88 : 959,239.68 = 240,219.76 : x - Step 2: Convert to fraction form
639,609.88/959,239.68 = 240,219.76/x - Step 3: Cross multiply
639,609.88x = 959,239.68 × 240,219.76 - Step 4: Simplify right side
639,609.88x = 230,428,325,712.08 - Step 5: Solve for x
x = 230,428,325,712.08/639,609.88 - Step 6: Final answer
x = 360,263.86
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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.