Finding the Fourth Proportional to 753,012.90, 1,128,761.19 and 332,214.66
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Solution
The fourth proportional to 753,012.90, 1,128,761.19 and 332,214.66 is: 497,987.50
Step by Step Solution
- Step 1: Write the proportion equation
753,012.90 : 1,128,761.19 = 332,214.66 : x - Step 2: Convert to fraction form
753,012.90/1,128,761.19 = 332,214.66/x - Step 3: Cross multiply
753,012.90x = 1,128,761.19 × 332,214.66 - Step 4: Simplify right side
753,012.90x = 374,991,014,957.05 - Step 5: Solve for x
x = 374,991,014,957.05/753,012.90 - Step 6: Final answer
x = 497,987.50
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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.