Finding the Fourth Proportional to 821,098.17, 1,132,867.88 and 476,867.75
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Solution
The fourth proportional to 821,098.17, 1,132,867.88 and 476,867.75 is: 657,933.69
Step by Step Solution
- Step 1: Write the proportion equation
821,098.17 : 1,132,867.88 = 476,867.75 : x - Step 2: Convert to fraction form
821,098.17/1,132,867.88 = 476,867.75/x - Step 3: Cross multiply
821,098.17x = 1,132,867.88 × 476,867.75 - Step 4: Simplify right side
821,098.17x = 540,228,153,049.13 - Step 5: Solve for x
x = 540,228,153,049.13/821,098.17 - Step 6: Final answer
x = 657,933.69
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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.