Finding the Fourth Proportional to 843,615.81, 1,164,189.92 and 461,642.63
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Solution
The fourth proportional to 843,615.81, 1,164,189.92 and 461,642.63 is: 637,066.88
Step by Step Solution
- Step 1: Write the proportion equation
843,615.81 : 1,164,189.92 = 461,642.63 : x - Step 2: Convert to fraction form
843,615.81/1,164,189.92 = 461,642.63/x - Step 3: Cross multiply
843,615.81x = 1,164,189.92 × 461,642.63 - Step 4: Simplify right side
843,615.81x = 537,439,688,359.13 - Step 5: Solve for x
x = 537,439,688,359.13/843,615.81 - Step 6: Final answer
x = 637,066.88
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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.