Finding the Fourth Proportional to 726,785.20, 1,090,177.80 and 461,720.80
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Solution
The fourth proportional to 726,785.20, 1,090,177.80 and 461,720.80 is: 692,581.20
Step by Step Solution
- Step 1: Write the proportion equation
726,785.20 : 1,090,177.80 = 461,720.80 : x - Step 2: Convert to fraction form
726,785.20/1,090,177.80 = 461,720.80/x - Step 3: Cross multiply
726,785.20x = 1,090,177.80 × 461,720.80 - Step 4: Simplify right side
726,785.20x = 503,357,765,958.24 - Step 5: Solve for x
x = 503,357,765,958.24/726,785.20 - Step 6: Final answer
x = 692,581.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.