Finding the Fourth Proportional to 691,130.84, 1,036,626.15 and 185,626.13
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Solution
The fourth proportional to 691,130.84, 1,036,626.15 and 185,626.13 is: 278,420.36
Step by Step Solution
- Step 1: Write the proportion equation
691,130.84 : 1,036,626.15 = 185,626.13 : x - Step 2: Convert to fraction form
691,130.84/1,036,626.15 = 185,626.13/x - Step 3: Cross multiply
691,130.84x = 1,036,626.15 × 185,626.13 - Step 4: Simplify right side
691,130.84x = 192,424,900,481.30 - Step 5: Solve for x
x = 192,424,900,481.30/691,130.84 - Step 6: Final answer
x = 278,420.36
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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.