Finding the Fourth Proportional to 402,455.36, 603,909.60 and 370,729.28
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Solution
The fourth proportional to 402,455.36, 603,909.60 and 370,729.28 is: 556,302.62
Step by Step Solution
- Step 1: Write the proportion equation
402,455.36 : 603,909.60 = 370,729.28 : x - Step 2: Convert to fraction form
402,455.36/603,909.60 = 370,729.28/x - Step 3: Cross multiply
402,455.36x = 603,909.60 × 370,729.28 - Step 4: Simplify right side
402,455.36x = 223,886,971,193.09 - Step 5: Solve for x
x = 223,886,971,193.09/402,455.36 - Step 6: Final answer
x = 556,302.62
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.