Finding the Fourth Proportional to 888,460.23, 1,332,689.34 and 289,420.43
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Solution
The fourth proportional to 888,460.23, 1,332,689.34 and 289,420.43 is: 434,130.32
Step by Step Solution
- Step 1: Write the proportion equation
888,460.23 : 1,332,689.34 = 289,420.43 : x - Step 2: Convert to fraction form
888,460.23/1,332,689.34 = 289,420.43/x - Step 3: Cross multiply
888,460.23x = 1,332,689.34 × 289,420.43 - Step 4: Simplify right side
888,460.23x = 385,707,521,839.22 - Step 5: Solve for x
x = 385,707,521,839.22/888,460.23 - Step 6: Final answer
x = 434,130.32
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Similar ratio
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1.5x scale
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.