Finding the Fourth Proportional to 744,315.87, 1,027,133.96 and 422,055.39
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Solution
The fourth proportional to 744,315.87, 1,027,133.96 and 422,055.39 is: 582,423.99
Step by Step Solution
- Step 1: Write the proportion equation
744,315.87 : 1,027,133.96 = 422,055.39 : x - Step 2: Convert to fraction form
744,315.87/1,027,133.96 = 422,055.39/x - Step 3: Cross multiply
744,315.87x = 1,027,133.96 × 422,055.39 - Step 4: Simplify right side
744,315.87x = 433,507,421,959.77 - Step 5: Solve for x
x = 433,507,421,959.77/744,315.87 - Step 6: Final answer
x = 582,423.99
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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.