Finding the Fourth Proportional to 831,665.16, 1,147,698.73 and 449,691.84
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Solution
The fourth proportional to 831,665.16, 1,147,698.73 and 449,691.84 is: 620,575.18
Step by Step Solution
- Step 1: Write the proportion equation
831,665.16 : 1,147,698.73 = 449,691.84 : x - Step 2: Convert to fraction form
831,665.16/1,147,698.73 = 449,691.84/x - Step 3: Cross multiply
831,665.16x = 1,147,698.73 × 449,691.84 - Step 4: Simplify right side
831,665.16x = 516,110,753,659.36 - Step 5: Solve for x
x = 516,110,753,659.36/831,665.16 - Step 6: Final answer
x = 620,575.18
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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.