Finding the Fourth Proportional to 816,507.99, 1,126,717.21 and 453,909.78
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Solution
The fourth proportional to 816,507.99, 1,126,717.21 and 453,909.78 is: 626,360.02
Step by Step Solution
- Step 1: Write the proportion equation
816,507.99 : 1,126,717.21 = 453,909.78 : x - Step 2: Convert to fraction form
816,507.99/1,126,717.21 = 453,909.78/x - Step 3: Cross multiply
816,507.99x = 1,126,717.21 × 453,909.78 - Step 4: Simplify right side
816,507.99x = 511,427,960,913.31 - Step 5: Solve for x
x = 511,427,960,913.31/816,507.99 - Step 6: Final answer
x = 626,360.02
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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.