Finding the Fourth Proportional to 980,298.70, 1,470,449.21 and 306,383.53
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Solution
The fourth proportional to 980,298.70, 1,470,449.21 and 306,383.53 is: 459,575.66
Step by Step Solution
- Step 1: Write the proportion equation
980,298.70 : 1,470,449.21 = 306,383.53 : x - Step 2: Convert to fraction form
980,298.70/1,470,449.21 = 306,383.53/x - Step 3: Cross multiply
980,298.70x = 1,470,449.21 × 306,383.53 - Step 4: Simplify right side
980,298.70x = 450,521,419,645.51 - Step 5: Solve for x
x = 450,521,419,645.51/980,298.70 - Step 6: Final answer
x = 459,575.66
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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.