Finding the Fourth Proportional to 746,853.63, 1,120,278.74 and 320,112.75
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Solution
The fourth proportional to 746,853.63, 1,120,278.74 and 320,112.75 is: 480,168.39
Step by Step Solution
- Step 1: Write the proportion equation
746,853.63 : 1,120,278.74 = 320,112.75 : x - Step 2: Convert to fraction form
746,853.63/1,120,278.74 = 320,112.75/x - Step 3: Cross multiply
746,853.63x = 1,120,278.74 × 320,112.75 - Step 4: Simplify right side
746,853.63x = 358,615,506,627.37 - Step 5: Solve for x
x = 358,615,506,627.37/746,853.63 - Step 6: Final answer
x = 480,168.39
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1.5x scale
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.