Finding the Fourth Proportional to 816,090.28, 1,126,210.80 and 453,548.14
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Solution
The fourth proportional to 816,090.28, 1,126,210.80 and 453,548.14 is: 625,899.89
Step by Step Solution
- Step 1: Write the proportion equation
816,090.28 : 1,126,210.80 = 453,548.14 : x - Step 2: Convert to fraction form
816,090.28/1,126,210.80 = 453,548.14/x - Step 3: Cross multiply
816,090.28x = 1,126,210.80 × 453,548.14 - Step 4: Simplify right side
816,090.28x = 510,790,813,587.91 - Step 5: Solve for x
x = 510,790,813,587.91/816,090.28 - Step 6: Final answer
x = 625,899.89
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1.5x scale
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.