Finding the Fourth Proportional to 817,923.40, 1,128,723.60 and 473,806.24
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Solution
The fourth proportional to 817,923.40, 1,128,723.60 and 473,806.24 is: 653,846.42
Step by Step Solution
- Step 1: Write the proportion equation
817,923.40 : 1,128,723.60 = 473,806.24 : x - Step 2: Convert to fraction form
817,923.40/1,128,723.60 = 473,806.24/x - Step 3: Cross multiply
817,923.40x = 1,128,723.60 × 473,806.24 - Step 4: Simplify right side
817,923.40x = 534,796,284,915.26 - Step 5: Solve for x
x = 534,796,284,915.26/817,923.40 - Step 6: Final answer
x = 653,846.42
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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.