Finding the Fourth Proportional to 840, 1,260.09 and 377.99
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Solution
The fourth proportional to 840, 1,260.09 and 377.99 is: 567.02
Step by Step Solution
- Step 1: Write the proportion equation
840 : 1,260.09 = 377.99 : x - Step 2: Convert to fraction form
840/1,260.09 = 377.99/x - Step 3: Cross multiply
840x = 1,260.09 × 377.99 - Step 4: Simplify right side
840x = 476,295.12 - Step 5: Solve for x
x = 476,295.12/840 - Step 6: Final answer
x = 567.02
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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.