Finding the Fourth Proportional to 888,461.23, 1,332,690.84 and 289,421.43
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Solution
The fourth proportional to 888,461.23, 1,332,690.84 and 289,421.43 is: 434,131.82
Step by Step Solution
- Step 1: Write the proportion equation
888,461.23 : 1,332,690.84 = 289,421.43 : x - Step 2: Convert to fraction form
888,461.23/1,332,690.84 = 289,421.43/x - Step 3: Cross multiply
888,461.23x = 1,332,690.84 × 289,421.43 - Step 4: Simplify right side
888,461.23x = 385,709,288,660.70 - Step 5: Solve for x
x = 385,709,288,660.70/888,461.23 - Step 6: Final answer
x = 434,131.82
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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.