Finding the Fourth Proportional to 669,455.96, 1,004,353.86 and 309,885.99
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Solution
The fourth proportional to 669,455.96, 1,004,353.86 and 309,885.99 is: 464,907.64
Step by Step Solution
- Step 1: Write the proportion equation
669,455.96 : 1,004,353.86 = 309,885.99 : x - Step 2: Convert to fraction form
669,455.96/1,004,353.86 = 309,885.99/x - Step 3: Cross multiply
669,455.96x = 1,004,353.86 × 309,885.99 - Step 4: Simplify right side
669,455.96x = 311,235,191,518.55 - Step 5: Solve for x
x = 311,235,191,518.55/669,455.96 - Step 6: Final answer
x = 464,907.64
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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.