Finding the Fourth Proportional to 668,857.29, 1,003,613.99 and 313,900.17
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Solution
The fourth proportional to 668,857.29, 1,003,613.99 and 313,900.17 is: 471,004.21
Step by Step Solution
- Step 1: Write the proportion equation
668,857.29 : 1,003,613.99 = 313,900.17 : x - Step 2: Convert to fraction form
668,857.29/1,003,613.99 = 313,900.17/x - Step 3: Cross multiply
668,857.29x = 1,003,613.99 × 313,900.17 - Step 4: Simplify right side
668,857.29x = 315,034,600,505.88 - Step 5: Solve for x
x = 315,034,600,505.88/668,857.29 - Step 6: Final answer
x = 471,004.21
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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.