Finding the Fourth Proportional to 442,981.80, 664,472.70 and 396,325.80
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Solution
The fourth proportional to 442,981.80, 664,472.70 and 396,325.80 is: 594,488.70
Step by Step Solution
- Step 1: Write the proportion equation
442,981.80 : 664,472.70 = 396,325.80 : x - Step 2: Convert to fraction form
442,981.80/664,472.70 = 396,325.80/x - Step 3: Cross multiply
442,981.80x = 664,472.70 × 396,325.80 - Step 4: Simplify right side
442,981.80x = 263,347,674,405.66 - Step 5: Solve for x
x = 263,347,674,405.66/442,981.80 - Step 6: Final answer
x = 594,488.70
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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.