Finding the Fourth Proportional to 499,219.38, 688,923.09 and 272,864.88
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Solution
The fourth proportional to 499,219.38, 688,923.09 and 272,864.88 is: 376,553.72
Step by Step Solution
- Step 1: Write the proportion equation
499,219.38 : 688,923.09 = 272,864.88 : x - Step 2: Convert to fraction form
499,219.38/688,923.09 = 272,864.88/x - Step 3: Cross multiply
499,219.38x = 688,923.09 × 272,864.88 - Step 4: Simplify right side
499,219.38x = 187,982,916,282.08 - Step 5: Solve for x
x = 187,982,916,282.08/499,219.38 - Step 6: Final answer
x = 376,553.72
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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.