Finding the Fourth Proportional to 683,215.85, 1,024,008.43 and 317,985.99
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Solution
The fourth proportional to 683,215.85, 1,024,008.43 and 317,985.99 is: 476,599.50
Step by Step Solution
- Step 1: Write the proportion equation
683,215.85 : 1,024,008.43 = 317,985.99 : x - Step 2: Convert to fraction form
683,215.85/1,024,008.43 = 317,985.99/x - Step 3: Cross multiply
683,215.85x = 1,024,008.43 × 317,985.99 - Step 4: Simplify right side
683,215.85x = 325,620,330,343.12 - Step 5: Solve for x
x = 325,620,330,343.12/683,215.85 - Step 6: Final answer
x = 476,599.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.