Finding the Fourth Proportional to 719,309.70, 992,576.70 and 396,999.09
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Solution
The fourth proportional to 719,309.70, 992,576.70 and 396,999.09 is: 547,819.73
Step by Step Solution
- Step 1: Write the proportion equation
719,309.70 : 992,576.70 = 396,999.09 : x - Step 2: Convert to fraction form
719,309.70/992,576.70 = 396,999.09/x - Step 3: Cross multiply
719,309.70x = 992,576.70 × 396,999.09 - Step 4: Simplify right side
719,309.70x = 394,052,046,655.20 - Step 5: Solve for x
x = 394,052,046,655.20/719,309.70 - Step 6: Final answer
x = 547,819.73
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.