Finding the Fourth Proportional to 688,940.91, 950,742.15 and 378,863.49
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Solution
The fourth proportional to 688,940.91, 950,742.15 and 378,863.49 is: 522,833.65
Step by Step Solution
- Step 1: Write the proportion equation
688,940.91 : 950,742.15 = 378,863.49 : x - Step 2: Convert to fraction form
688,940.91/950,742.15 = 378,863.49/x - Step 3: Cross multiply
688,940.91x = 950,742.15 × 378,863.49 - Step 4: Simplify right side
688,940.91x = 360,201,489,039.10 - Step 5: Solve for x
x = 360,201,489,039.10/688,940.91 - Step 6: Final answer
x = 522,833.65
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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.