Finding the Fourth Proportional to 679,629.28, 1,019,469.84 and 346,816.48
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Solution
The fourth proportional to 679,629.28, 1,019,469.84 and 346,816.48 is: 520,237.95
Step by Step Solution
- Step 1: Write the proportion equation
679,629.28 : 1,019,469.84 = 346,816.48 : x - Step 2: Convert to fraction form
679,629.28/1,019,469.84 = 346,816.48/x - Step 3: Cross multiply
679,629.28x = 1,019,469.84 × 346,816.48 - Step 4: Simplify right side
679,629.28x = 353,568,941,374.96 - Step 5: Solve for x
x = 353,568,941,374.96/679,629.28 - Step 6: Final answer
x = 520,237.95
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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.