Finding the Fourth Proportional to 705,958.12, 974,228.40 and 383,668.42
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Solution
The fourth proportional to 705,958.12, 974,228.40 and 383,668.42 is: 529,465.79
Step by Step Solution
- Step 1: Write the proportion equation
705,958.12 : 974,228.40 = 383,668.42 : x - Step 2: Convert to fraction form
705,958.12/974,228.40 = 383,668.42/x - Step 3: Cross multiply
705,958.12x = 974,228.40 × 383,668.42 - Step 4: Simplify right side
705,958.12x = 373,780,670,947.13 - Step 5: Solve for x
x = 373,780,670,947.13/705,958.12 - Step 6: Final answer
x = 529,465.79
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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.