Finding the Fourth Proportional to 748,574.64, 1,123,306.62 and 275,592.12
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Solution
The fourth proportional to 748,574.64, 1,123,306.62 and 275,592.12 is: 413,551.88
Step by Step Solution
- Step 1: Write the proportion equation
748,574.64 : 1,123,306.62 = 275,592.12 : x - Step 2: Convert to fraction form
748,574.64/1,123,306.62 = 275,592.12/x - Step 3: Cross multiply
748,574.64x = 1,123,306.62 × 275,592.12 - Step 4: Simplify right side
748,574.64x = 309,574,452,815.83 - Step 5: Solve for x
x = 309,574,452,815.83/748,574.64 - Step 6: Final answer
x = 413,551.88
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.