Finding the Fourth Proportional to 818,986.62, 1,130,149.81 and 451,443.50
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Solution
The fourth proportional to 818,986.62, 1,130,149.81 and 451,443.50 is: 622,963.52
Step by Step Solution
- Step 1: Write the proportion equation
818,986.62 : 1,130,149.81 = 451,443.50 : x - Step 2: Convert to fraction form
818,986.62/1,130,149.81 = 451,443.50/x - Step 3: Cross multiply
818,986.62x = 1,130,149.81 × 451,443.50 - Step 4: Simplify right side
818,986.62x = 510,198,791,099.67 - Step 5: Solve for x
x = 510,198,791,099.67/818,986.62 - Step 6: Final answer
x = 622,963.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.