Finding the Fourth Proportional to 1,279,217.21, 1,765,314.84 and 706,253.18
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Solution
The fourth proportional to 1,279,217.21, 1,765,314.84 and 706,253.18 is: 974,626.68
Step by Step Solution
- Step 1: Write the proportion equation
1,279,217.21 : 1,765,314.84 = 706,253.18 : x - Step 2: Convert to fraction form
1,279,217.21/1,765,314.84 = 706,253.18/x - Step 3: Cross multiply
1,279,217.21x = 1,765,314.84 × 706,253.18 - Step 4: Simplify right side
1,279,217.21x = 1,246,759,219,451.19 - Step 5: Solve for x
x = 1,246,759,219,451.19/1,279,217.21 - Step 6: Final answer
x = 974,626.68
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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.