Finding the Fourth Proportional to 768,118.51, 1,059,923.14 and 423,948.09
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Solution
The fourth proportional to 768,118.51, 1,059,923.14 and 423,948.09 is: 585,003.99
Step by Step Solution
- Step 1: Write the proportion equation
768,118.51 : 1,059,923.14 = 423,948.09 : x - Step 2: Convert to fraction form
768,118.51/1,059,923.14 = 423,948.09/x - Step 3: Cross multiply
768,118.51x = 1,059,923.14 × 423,948.09 - Step 4: Simplify right side
768,118.51x = 449,352,390,749.80 - Step 5: Solve for x
x = 449,352,390,749.80/768,118.51 - Step 6: Final answer
x = 585,003.99
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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.