Finding the Fourth Proportional to 499,789.62, 689,726.88 and 273,435.12
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Solution
The fourth proportional to 499,789.62, 689,726.88 and 273,435.12 is: 377,349.88
Step by Step Solution
- Step 1: Write the proportion equation
499,789.62 : 689,726.88 = 273,435.12 : x - Step 2: Convert to fraction form
499,789.62/689,726.88 = 273,435.12/x - Step 3: Cross multiply
499,789.62x = 689,726.88 × 273,435.12 - Step 4: Simplify right side
499,789.62x = 188,595,552,200.03 - Step 5: Solve for x
x = 188,595,552,200.03/499,789.62 - Step 6: Final answer
x = 377,349.88
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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.