Finding the Fourth Proportional to 818,274.93, 1,129,138.53 and 455,732.53
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Solution
The fourth proportional to 818,274.93, 1,129,138.53 and 455,732.53 is: 628,865.84
Step by Step Solution
- Step 1: Write the proportion equation
818,274.93 : 1,129,138.53 = 455,732.53 : x - Step 2: Convert to fraction form
818,274.93/1,129,138.53 = 455,732.53/x - Step 3: Cross multiply
818,274.93x = 1,129,138.53 × 455,732.53 - Step 4: Simplify right side
818,274.93x = 514,585,157,029.03 - Step 5: Solve for x
x = 514,585,157,029.03/818,274.93 - Step 6: Final answer
x = 628,865.84
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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.