Finding the Fourth Proportional to 763,528.64, 1,145,440.59 and 290,177.10
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Solution
The fourth proportional to 763,528.64, 1,145,440.59 and 290,177.10 is: 435,321.75
Step by Step Solution
- Step 1: Write the proportion equation
763,528.64 : 1,145,440.59 = 290,177.10 : x - Step 2: Convert to fraction form
763,528.64/1,145,440.59 = 290,177.10/x - Step 3: Cross multiply
763,528.64x = 1,145,440.59 × 290,177.10 - Step 4: Simplify right side
763,528.64x = 332,380,628,628.49 - Step 5: Solve for x
x = 332,380,628,628.49/763,528.64 - Step 6: Final answer
x = 435,321.75
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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.