Finding the Fourth Proportional to 1,281,642.99, 1,768,662.71 and 722,792.96
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Solution
The fourth proportional to 1,281,642.99, 1,768,662.71 and 722,792.96 is: 997,451.67
Step by Step Solution
- Step 1: Write the proportion equation
1,281,642.99 : 1,768,662.71 = 722,792.96 : x - Step 2: Convert to fraction form
1,281,642.99/1,768,662.71 = 722,792.96/x - Step 3: Cross multiply
1,281,642.99x = 1,768,662.71 × 722,792.96 - Step 4: Simplify right side
1,281,642.99x = 1,278,376,942,945.24 - Step 5: Solve for x
x = 1,278,376,942,945.24/1,281,642.99 - Step 6: Final answer
x = 997,451.67
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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.