Finding the Fourth Proportional to 499,816.55, 689,029.43 and 356,327.48
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Solution
The fourth proportional to 499,816.55, 689,029.43 and 356,327.48 is: 491,220.47
Step by Step Solution
- Step 1: Write the proportion equation
499,816.55 : 689,029.43 = 356,327.48 : x - Step 2: Convert to fraction form
499,816.55/689,029.43 = 356,327.48/x - Step 3: Cross multiply
499,816.55x = 689,029.43 × 356,327.48 - Step 4: Simplify right side
499,816.55x = 245,520,117,505.05 - Step 5: Solve for x
x = 245,520,117,505.05/499,816.55 - Step 6: Final answer
x = 491,220.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.