Finding the Fourth Proportional to 499,147.12, 688,821.36 and 272,792.56
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Solution
The fourth proportional to 499,147.12, 688,821.36 and 272,792.56 is: 376,452.82
Step by Step Solution
- Step 1: Write the proportion equation
499,147.12 : 688,821.36 = 272,792.56 : x - Step 2: Convert to fraction form
499,147.12/688,821.36 = 272,792.56/x - Step 3: Cross multiply
499,147.12x = 688,821.36 × 272,792.56 - Step 4: Simplify right side
499,147.12x = 187,905,342,177.08 - Step 5: Solve for x
x = 187,905,342,177.08/499,147.12 - Step 6: Final answer
x = 376,452.82
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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.