Finding the Fourth Proportional to 716,673.56, 1,075,015.78 and 261,590.99
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Solution
The fourth proportional to 716,673.56, 1,075,015.78 and 261,590.99 is: 392,388.46
Step by Step Solution
- Step 1: Write the proportion equation
716,673.56 : 1,075,015.78 = 261,590.99 : x - Step 2: Convert to fraction form
716,673.56/1,075,015.78 = 261,590.99/x - Step 3: Cross multiply
716,673.56x = 1,075,015.78 × 261,590.99 - Step 4: Simplify right side
716,673.56x = 281,214,436,126.77 - Step 5: Solve for x
x = 281,214,436,126.77/716,673.56 - Step 6: Final answer
x = 392,388.46
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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.