Finding the Fourth Proportional to 442,947.80, 664,421.70 and 302,979.80
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Solution
The fourth proportional to 442,947.80, 664,421.70 and 302,979.80 is: 454,469.70
Step by Step Solution
- Step 1: Write the proportion equation
442,947.80 : 664,421.70 = 302,979.80 : x - Step 2: Convert to fraction form
442,947.80/664,421.70 = 302,979.80/x - Step 3: Cross multiply
442,947.80x = 664,421.70 × 302,979.80 - Step 4: Simplify right side
442,947.80x = 201,306,353,781.66 - Step 5: Solve for x
x = 201,306,353,781.66/442,947.80 - Step 6: Final answer
x = 454,469.70
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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.