Finding the Fourth Proportional to 499,020.99, 687,931.94 and 355,531.92
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Solution
The fourth proportional to 499,020.99, 687,931.94 and 355,531.92 is: 490,123.20
Step by Step Solution
- Step 1: Write the proportion equation
499,020.99 : 687,931.94 = 355,531.92 : x - Step 2: Convert to fraction form
499,020.99/687,931.94 = 355,531.92/x - Step 3: Cross multiply
499,020.99x = 687,931.94 × 355,531.92 - Step 4: Simplify right side
499,020.99x = 244,581,761,766.61 - Step 5: Solve for x
x = 244,581,761,766.61/499,020.99 - Step 6: Final answer
x = 490,123.20
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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.