Finding the Fourth Proportional to 763,219.32, 1,053,189.88 and 423,660.84
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Solution
The fourth proportional to 763,219.32, 1,053,189.88 and 423,660.84 is: 584,622.66
Step by Step Solution
- Step 1: Write the proportion equation
763,219.32 : 1,053,189.88 = 423,660.84 : x - Step 2: Convert to fraction form
763,219.32/1,053,189.88 = 423,660.84/x - Step 3: Cross multiply
763,219.32x = 1,053,189.88 × 423,660.84 - Step 4: Simplify right side
763,219.32x = 446,195,309,240.30 - Step 5: Solve for x
x = 446,195,309,240.30/763,219.32 - Step 6: Final answer
x = 584,622.66
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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.