Finding the Fourth Proportional to 685,492.14, 1,028,448.41 and 306,731.68
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Solution
The fourth proportional to 685,492.14, 1,028,448.41 and 306,731.68 is: 460,191.58
Step by Step Solution
- Step 1: Write the proportion equation
685,492.14 : 1,028,448.41 = 306,731.68 : x - Step 2: Convert to fraction form
685,492.14/1,028,448.41 = 306,731.68/x - Step 3: Cross multiply
685,492.14x = 1,028,448.41 × 306,731.68 - Step 4: Simplify right side
685,492.14x = 315,457,708,592.63 - Step 5: Solve for x
x = 315,457,708,592.63/685,492.14 - Step 6: Final answer
x = 460,191.58
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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.