Finding the Fourth Proportional to 499,048.92, 688,689.30 and 272,694.42
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Solution
The fourth proportional to 499,048.92, 688,689.30 and 272,694.42 is: 376,319.28
Step by Step Solution
- Step 1: Write the proportion equation
499,048.92 : 688,689.30 = 272,694.42 : x - Step 2: Convert to fraction form
499,048.92/688,689.30 = 272,694.42/x - Step 3: Cross multiply
499,048.92x = 688,689.30 × 272,694.42 - Step 4: Simplify right side
499,048.92x = 187,801,729,223.71 - Step 5: Solve for x
x = 187,801,729,223.71/499,048.92 - Step 6: Final answer
x = 376,319.28
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1.5x scale
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.