Finding the Fourth Proportional to 747,739.14, 1,031,874.76 and 408,207.39
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Solution
The fourth proportional to 747,739.14, 1,031,874.76 and 408,207.39 is: 563,323.33
Step by Step Solution
- Step 1: Write the proportion equation
747,739.14 : 1,031,874.76 = 408,207.39 : x - Step 2: Convert to fraction form
747,739.14/1,031,874.76 = 408,207.39/x - Step 3: Cross multiply
747,739.14x = 1,031,874.76 × 408,207.39 - Step 4: Simplify right side
747,739.14x = 421,218,902,586.48 - Step 5: Solve for x
x = 421,218,902,586.48/747,739.14 - Step 6: Final answer
x = 563,323.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.