Finding the Fourth Proportional to 765,590.60, 1,149,183.92 and 339,425.70
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Solution
The fourth proportional to 765,590.60, 1,149,183.92 and 339,425.70 is: 509,492.35
Step by Step Solution
- Step 1: Write the proportion equation
765,590.60 : 1,149,183.92 = 339,425.70 : x - Step 2: Convert to fraction form
765,590.60/1,149,183.92 = 339,425.70/x - Step 3: Cross multiply
765,590.60x = 1,149,183.92 × 339,425.70 - Step 4: Simplify right side
765,590.60x = 390,062,556,474.74 - Step 5: Solve for x
x = 390,062,556,474.74/765,590.60 - Step 6: Final answer
x = 509,492.35
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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.