Finding the Fourth Proportional to 930,903.12, 1,396,354.76 and 299,816.93
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Solution
The fourth proportional to 930,903.12, 1,396,354.76 and 299,816.93 is: 449,725.42
Step by Step Solution
- Step 1: Write the proportion equation
930,903.12 : 1,396,354.76 = 299,816.93 : x - Step 2: Convert to fraction form
930,903.12/1,396,354.76 = 299,816.93/x - Step 3: Cross multiply
930,903.12x = 1,396,354.76 × 299,816.93 - Step 4: Simplify right side
930,903.12x = 418,650,800,450.20 - Step 5: Solve for x
x = 418,650,800,450.20/930,903.12 - Step 6: Final answer
x = 449,725.42
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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.