Finding the Fourth Proportional to 747,957.12, 1,122,343.92 and 433,029.12
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Solution
The fourth proportional to 747,957.12, 1,122,343.92 and 433,029.12 is: 649,780.03
Step by Step Solution
- Step 1: Write the proportion equation
747,957.12 : 1,122,343.92 = 433,029.12 : x - Step 2: Convert to fraction form
747,957.12/1,122,343.92 = 433,029.12/x - Step 3: Cross multiply
747,957.12x = 1,122,343.92 × 433,029.12 - Step 4: Simplify right side
747,957.12x = 486,007,600,014.95 - Step 5: Solve for x
x = 486,007,600,014.95/747,957.12 - Step 6: Final answer
x = 649,780.03
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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.