Finding the Fourth Proportional to 768,117.51, 1,059,921.77 and 423,947.09
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Solution
The fourth proportional to 768,117.51, 1,059,921.77 and 423,947.09 is: 585,002.60
Step by Step Solution
- Step 1: Write the proportion equation
768,117.51 : 1,059,921.77 = 423,947.09 : x - Step 2: Convert to fraction form
768,117.51/1,059,921.77 = 423,947.09/x - Step 3: Cross multiply
768,117.51x = 1,059,921.77 × 423,947.09 - Step 4: Simplify right side
768,117.51x = 449,350,742,599.81 - Step 5: Solve for x
x = 449,350,742,599.81/768,117.51 - Step 6: Final answer
x = 585,002.60
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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.