Finding the Fourth Proportional to 753,018.90, 1,128,770.19 and 332,220.66
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Solution
The fourth proportional to 753,018.90, 1,128,770.19 and 332,220.66 is: 497,996.50
Step by Step Solution
- Step 1: Write the proportion equation
753,018.90 : 1,128,770.19 = 332,220.66 : x - Step 2: Convert to fraction form
753,018.90/1,128,770.19 = 332,220.66/x - Step 3: Cross multiply
753,018.90x = 1,128,770.19 × 332,220.66 - Step 4: Simplify right side
753,018.90x = 375,000,777,510.13 - Step 5: Solve for x
x = 375,000,777,510.13/753,018.90 - Step 6: Final answer
x = 497,996.50
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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.