Finding the Fourth Proportional to 816,483.61, 1,126,785.84 and 453,913.53
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Solution
The fourth proportional to 816,483.61, 1,126,785.84 and 453,913.53 is: 626,422.05
Step by Step Solution
- Step 1: Write the proportion equation
816,483.61 : 1,126,785.84 = 453,913.53 : x - Step 2: Convert to fraction form
816,483.61/1,126,785.84 = 453,913.53/x - Step 3: Cross multiply
816,483.61x = 1,126,785.84 × 453,913.53 - Step 4: Simplify right side
816,483.61x = 511,463,338,188.42 - Step 5: Solve for x
x = 511,463,338,188.42/816,483.61 - Step 6: Final answer
x = 626,422.05
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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.