Finding the Fourth Proportional to 389,631.80, 584,447.70 and 296,319.80
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Solution
The fourth proportional to 389,631.80, 584,447.70 and 296,319.80 is: 444,479.70
Step by Step Solution
- Step 1: Write the proportion equation
389,631.80 : 584,447.70 = 296,319.80 : x - Step 2: Convert to fraction form
389,631.80/584,447.70 = 296,319.80/x - Step 3: Cross multiply
389,631.80x = 584,447.70 × 296,319.80 - Step 4: Simplify right side
389,631.80x = 173,183,425,574.46 - Step 5: Solve for x
x = 173,183,425,574.46/389,631.80 - Step 6: Final answer
x = 444,479.70
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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.