Finding the Fourth Proportional to 742,628.16, 1,113,112.80 and 682,843.68
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Solution
The fourth proportional to 742,628.16, 1,113,112.80 and 682,843.68 is: 1,023,502.85
Step by Step Solution
- Step 1: Write the proportion equation
742,628.16 : 1,113,112.80 = 682,843.68 : x - Step 2: Convert to fraction form
742,628.16/1,113,112.80 = 682,843.68/x - Step 3: Cross multiply
742,628.16x = 1,113,112.80 × 682,843.68 - Step 4: Simplify right side
742,628.16x = 760,082,040,607.10 - Step 5: Solve for x
x = 760,082,040,607.10/742,628.16 - Step 6: Final answer
x = 1,023,502.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.