Finding the Fourth Proportional to 957,576.06, 1,321,548.08 and 715,438.31
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Solution
The fourth proportional to 957,576.06, 1,321,548.08 and 715,438.31 is: 987,374.43
Step by Step Solution
- Step 1: Write the proportion equation
957,576.06 : 1,321,548.08 = 715,438.31 : x - Step 2: Convert to fraction form
957,576.06/1,321,548.08 = 715,438.31/x - Step 3: Cross multiply
957,576.06x = 1,321,548.08 × 715,438.31 - Step 4: Simplify right side
957,576.06x = 945,486,114,754.01 - Step 5: Solve for x
x = 945,486,114,754.01/957,576.06 - Step 6: Final answer
x = 987,374.43
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1.5x scale
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.