Finding the Fourth Proportional to 719,478.68, 992,854.50 and 397,181.84
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Solution
The fourth proportional to 719,478.68, 992,854.50 and 397,181.84 is: 548,096.54
Step by Step Solution
- Step 1: Write the proportion equation
719,478.68 : 992,854.50 = 397,181.84 : x - Step 2: Convert to fraction form
719,478.68/992,854.50 = 397,181.84/x - Step 3: Cross multiply
719,478.68x = 992,854.50 × 397,181.84 - Step 4: Simplify right side
719,478.68x = 394,343,777,162.28 - Step 5: Solve for x
x = 394,343,777,162.28/719,478.68 - Step 6: Final answer
x = 548,096.54
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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.