Finding the Fourth Proportional to 757,028.25, 1,134,981.86 and 457,438.68
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Solution
The fourth proportional to 757,028.25, 1,134,981.86 and 457,438.68 is: 685,819.32
Step by Step Solution
- Step 1: Write the proportion equation
757,028.25 : 1,134,981.86 = 457,438.68 : x - Step 2: Convert to fraction form
757,028.25/1,134,981.86 = 457,438.68/x - Step 3: Cross multiply
757,028.25x = 1,134,981.86 × 457,438.68 - Step 4: Simplify right side
757,028.25x = 519,184,601,575.15 - Step 5: Solve for x
x = 519,184,601,575.15/757,028.25 - Step 6: Final answer
x = 685,819.32
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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.