Finding the Fourth Proportional to 957,636.72, 1,321,542.68 and 527,907.42
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Solution
The fourth proportional to 957,636.72, 1,321,542.68 and 527,907.42 is: 728,514.45
Step by Step Solution
- Step 1: Write the proportion equation
957,636.72 : 1,321,542.68 = 527,907.42 : x - Step 2: Convert to fraction form
957,636.72/1,321,542.68 = 527,907.42/x - Step 3: Cross multiply
957,636.72x = 1,321,542.68 × 527,907.42 - Step 4: Simplify right side
957,636.72x = 697,652,183,979.15 - Step 5: Solve for x
x = 697,652,183,979.15/957,636.72 - Step 6: Final answer
x = 728,514.45
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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.